diff --git a/openbsd/OpenBSDProcessList.c b/openbsd/OpenBSDProcessList.c
index fbe7c103..1c6c0e2f 100644
--- a/openbsd/OpenBSDProcessList.c
+++ b/openbsd/OpenBSDProcessList.c
@@ -37,9 +37,12 @@ static int pageSize;
 static int pageSizeKB;
 
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) {
-   const int mib[] = { CTL_HW, HW_NCPU };
+   const int nmib[] = { CTL_HW, HW_NCPU };
+   const int mib[] = { CTL_HW, HW_NCPUONLINE };
    const int fmib[] = { CTL_KERN, KERN_FSCALE };
    int r;
+   unsigned int cpu_index_c = 0;
+   unsigned int ncpu;
    size_t size;
    char errbuf[_POSIX2_LINE_MAX];
 
@@ -54,6 +57,12 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, ui
    }
    opl->cpus = xCalloc(pl->cpuCount + 1, sizeof(CPUData));
 
+   size = sizeof(int);
+   r = sysctl(nmib, 2, &ncpu, &size, NULL, 0);
+   if (r < 0) {
+      ncpu = pl->cpuCount;
+   }
+
    size = sizeof(fscale);
    if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0) {
       CRT_fatalError("fscale sysctl call failed");
@@ -76,6 +85,23 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, ui
 
    opl->cpuSpeed = -1;
 
+   for (unsigned int i = 0; i < ncpu; i++) {
+      const int ncmib[] = { CTL_KERN, KERN_CPUSTATS, i };
+      struct cpustats cpu_stats;
+
+      size = sizeof(cpu_stats);
+      if (sysctl(ncmib, 3, &cpu_stats, &size, NULL, 0) < 0) {
+         CRT_fatalError("ncmib sysctl call failed");
+      }
+      if (cpu_stats.cs_flags & CPUSTATS_ONLINE) {
+         opl->cpus[cpu_index_c].cpuIndex = i;
+         cpu_index_c++;
+      }
+
+      if (cpu_index_c == pl->cpuCount)
+         break;
+   }
+
    return pl;
 }
 
@@ -340,7 +366,7 @@ static void OpenBSDProcessList_scanCPUTime(OpenBSDProcessList* this) {
    u_int64_t avg[CPUSTATES] = {0};
 
    for (unsigned int i = 0; i < this->super.cpuCount; i++) {
-      getKernelCPUTimes(i, kernelTimes);
+      getKernelCPUTimes(this->cpus[i].cpuIndex, kernelTimes);
       CPUData* cpu = this->cpus + i + 1;
       kernelCPUTimesToHtop(kernelTimes, cpu);
 
diff --git a/openbsd/OpenBSDProcessList.h b/openbsd/OpenBSDProcessList.h
index 46f53505..0ef6a894 100644
--- a/openbsd/OpenBSDProcessList.h
+++ b/openbsd/OpenBSDProcessList.h
@@ -35,6 +35,8 @@ typedef struct CPUData_ {
    unsigned long long int spinPeriod;
    unsigned long long int intrPeriod;
    unsigned long long int idlePeriod;
+
+   int cpuIndex;
 } CPUData;
 
 typedef struct OpenBSDProcessList_ {