diff --git a/Action.c b/Action.c
index 66400e9d..97fe55ac 100644
--- a/Action.c
+++ b/Action.c
@@ -404,7 +404,7 @@ static struct { const char* key; const char* info; } helpRight[] = {
 #if (HAVE_LIBHWLOC || HAVE_NATIVE_AFFINITY)
    { .key = "      a: ", .info = "set CPU affinity" },
 #endif
-   { .key = "      i: ", .info = "set IO prority" },
+   { .key = "      i: ", .info = "set IO priority" },
    { .key = "      l: ", .info = "list open files with lsof" },
    { .key = "      s: ", .info = "trace syscalls with strace" },
    { .key = "         ", .info = "" },
diff --git a/Process.c b/Process.c
index 4999bfcb..8046daf1 100644
--- a/Process.c
+++ b/Process.c
@@ -513,8 +513,11 @@ void Process_toggleTag(Process* this) {
 }
 
 bool Process_setPriority(Process* this, int priority) {
+   uid_t euid = geteuid();
+   seteuid(getuid());
    int old_prio = getpriority(PRIO_PROCESS, this->pid);
    int err = setpriority(PRIO_PROCESS, this->pid, priority);
+   seteuid(euid);
    if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) {
       this->nice = priority;
    }
@@ -526,7 +529,10 @@ bool Process_changePriorityBy(Process* this, size_t delta) {
 }
 
 void Process_sendSignal(Process* this, size_t sgn) {
+   uid_t euid = geteuid();
+   seteuid(getuid());
    kill(this->pid, (int) sgn);
+   seteuid(euid);
 }
 
 long Process_pidCompare(const void* v1, const void* v2) {
diff --git a/Settings.c b/Settings.c
index 65e49bfc..8eb5bbd7 100644
--- a/Settings.c
+++ b/Settings.c
@@ -154,7 +154,12 @@ static void readFields(ProcessField* fields, int* flags, const char* line) {
 }
 
 static bool Settings_read(Settings* this, const char* fileName) {
-   FILE* fd = fopen(fileName, "r");
+   FILE* fd;
+   uid_t euid = geteuid();
+
+   seteuid(getuid());
+   fd = fopen(fileName, "r");
+   seteuid(euid);
    if (!fd)
       return false;
    
@@ -260,7 +265,11 @@ static void writeMeterModes(Settings* this, FILE* fd, int column) {
 
 bool Settings_write(Settings* this) {
    FILE* fd;
+   uid_t euid = geteuid();
+
+   seteuid(getuid());
    fd = fopen(this->filename, "w");
+   seteuid(euid);
    if (fd == NULL) {
       return false;
    }
@@ -345,6 +354,8 @@ Settings* Settings_new(int cpuCount) {
          htopDir = String_cat(home, "/.config/htop");
       }
       legacyDotfile = String_cat(home, "/.htoprc");
+      uid_t euid = geteuid();
+      seteuid(getuid());
       (void) mkdir(configDir, 0700);
       (void) mkdir(htopDir, 0700);
       free(htopDir);
@@ -357,6 +368,7 @@ Settings* Settings_new(int cpuCount) {
          free(legacyDotfile);
          legacyDotfile = NULL;
       }
+      seteuid(euid);
    }
    this->colorScheme = 0;
    this->changed = false;
diff --git a/TraceScreen.c b/TraceScreen.c
index ecd0c0ab..3a62eb63 100644
--- a/TraceScreen.c
+++ b/TraceScreen.c
@@ -86,6 +86,7 @@ void TraceScreen_run(TraceScreen* this) {
    int child = fork();
    if (child == -1) return;
    if (child == 0) {
+      seteuid(getuid());
       dup2(fdpair[1], STDERR_FILENO);
       int ok = fcntl(fdpair[1], F_SETFL, O_NONBLOCK);
       if (ok != -1) {
diff --git a/configure.ac b/configure.ac
index 709b69b7..424e80ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,7 +103,7 @@ if test "x$enable_proc" = xyes; then
    AC_DEFINE(HAVE_PROC, 1, [Define if using a Linux-compatible proc filesystem.])
 fi
 
-AC_ARG_WITH(proc, [  --with-proc=DIR      Location of a Linux-compatible proc filesystem (default=/proc).],
+AC_ARG_WITH(proc, [AC_HELP_STRING([--with-proc=DIR], [Location of a Linux-compatible proc filesystem (default=/proc).])],
 
 if test -n "$withval"; then
    AC_DEFINE_UNQUOTED(PROCDIR, "$withval", [Path of proc filesystem])
diff --git a/openbsd/OpenBSDProcessList.c b/openbsd/OpenBSDProcessList.c
index 9757ef91..6da38efc 100644
--- a/openbsd/OpenBSDProcessList.c
+++ b/openbsd/OpenBSDProcessList.c
@@ -49,8 +49,8 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
    int mib[] = { CTL_HW, HW_NCPU };
    int fmib[] = { CTL_KERN, KERN_FSCALE };
    int i, e;
-   OpenBSDProcessList* fpl = calloc(1, sizeof(OpenBSDProcessList));
-   ProcessList* pl = (ProcessList*) fpl;
+   OpenBSDProcessList* opl = calloc(1, sizeof(OpenBSDProcessList));
+   ProcessList* pl = (ProcessList*) opl;
    size_t size = sizeof(pl->cpuCount);
 
    ProcessList_init(pl, Class(OpenBSDProcess), usersTable, pidWhiteList, userId);
@@ -58,31 +58,31 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
    if (e == -1 || pl->cpuCount < 1) {
       pl->cpuCount = 1;
    }
-   fpl->cpus = realloc(fpl->cpus, pl->cpuCount * sizeof(CPUData));
+   opl->cpus = realloc(opl->cpus, pl->cpuCount * sizeof(CPUData));
 
    size = sizeof(fscale);
    if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0)
       err(1, "fscale sysctl call failed");
 
    for (i = 0; i < pl->cpuCount; i++) {
-      fpl->cpus[i].totalTime = 1;
-      fpl->cpus[i].totalPeriod = 1;
+      opl->cpus[i].totalTime = 1;
+      opl->cpus[i].totalPeriod = 1;
    }
 
    pageSizeKb = PAGE_SIZE_KB;
 
    // XXX: last arg should eventually be an errbuf
-   fpl->kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, NULL);
-   assert(fpl->kd);
+   opl->kd = kvm_open(NULL, NULL, NULL, KVM_NO_FILES, NULL);
+   assert(opl->kd);
 
    return pl;
 }
 
 void ProcessList_delete(ProcessList* this) {
-   const OpenBSDProcessList* fpl = (OpenBSDProcessList*) this;
-   if (fpl->kd) kvm_close(fpl->kd);
+   const OpenBSDProcessList* opl = (OpenBSDProcessList*) this;
+   if (opl->kd) kvm_close(opl->kd);
 
-   free(fpl->cpus);
+   free(opl->cpus);
 
    ProcessList_done(this);
    free(this);
@@ -102,7 +102,7 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    pl->totalMem = uvmexp.npages * pageSizeKb;
 
    /*
-   const OpenBSDProcessList* fpl = (OpenBSDProcessList*) pl;
+   const OpenBSDProcessList* opl = (OpenBSDProcessList*) pl;
 
    size_t len = sizeof(pl->totalMem);
    sysctl(MIB_hw_physmem, 2, &(pl->totalMem), &len, NULL, 0);
@@ -114,7 +114,7 @@ static inline void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) {
    pl->cachedMem *= pageSizeKb;
 
    struct kvm_swap swap[16];
-   int nswap = kvm_getswapinfo(fpl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
+   int nswap = kvm_getswapinfo(opl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
    pl->totalSwap = 0;
    pl->usedSwap = 0;
    for (int i = 0; i < nswap; i++) {
@@ -180,7 +180,7 @@ double getpcpu(const struct kinfo_proc *kp) {
 }
 
 void ProcessList_goThroughEntries(ProcessList* this) {
-   OpenBSDProcessList* fpl = (OpenBSDProcessList*) this;
+   OpenBSDProcessList* opl = (OpenBSDProcessList*) this;
    Settings* settings = this->settings;
    bool hideKernelThreads = settings->hideKernelThreads;
    bool hideUserlandThreads = settings->hideUserlandThreads;
@@ -194,7 +194,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
    OpenBSDProcessList_scanMemoryInfo(this);
 
    // use KERN_PROC_KTHREAD to also include kernel threads
-   struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
+   struct kinfo_proc* kprocs = kvm_getprocs(opl->kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
    //struct kinfo_proc* kprocs = getprocs(KERN_PROC_ALL, 0, &count);
 
    for (i = 0; i < count; i++) {
@@ -218,11 +218,11 @@ void ProcessList_goThroughEntries(ProcessList* this) {
          proc->starttime_ctime = kproc->p_ustart_sec;
          proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
          ProcessList_add((ProcessList*)this, proc);
-         proc->comm = OpenBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+         proc->comm = OpenBSDProcessList_readProcessName(opl->kd, kproc, &proc->basenameOffset);
       } else {
          if (settings->updateProcessNames) {
             free(proc->comm);
-            proc->comm = OpenBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+            proc->comm = OpenBSDProcessList_readProcessName(opl->kd, kproc, &proc->basenameOffset);
          }
       }