diff --git a/DynamicColumn.h b/DynamicColumn.h
index 464ca668..2d0f97c7 100644
--- a/DynamicColumn.h
+++ b/DynamicColumn.h
@@ -24,7 +24,7 @@ const char* DynamicColumn_init(unsigned int key);
 
 const DynamicColumn* DynamicColumn_lookup(Hashtable* dynamics, unsigned int key);
 
-const DynamicColumn* DynamicColumn_search(Hashtable* dynamics, const char* name, unsigned int* field);
+const DynamicColumn* DynamicColumn_search(Hashtable* dynamics, const char* name, unsigned int* key);
 
 bool DynamicColumn_writeField(const Process* proc, RichString* str, unsigned int key);
 
diff --git a/DynamicMeter.h b/DynamicMeter.h
index f787cbb7..eb35064a 100644
--- a/DynamicMeter.h
+++ b/DynamicMeter.h
@@ -17,7 +17,7 @@ typedef struct DynamicMeter_ {
 
 Hashtable* DynamicMeters_new(void);
 
-const char* DynamicMeter_lookup(Hashtable* dynamics, unsigned int param);
+const char* DynamicMeter_lookup(Hashtable* dynamics, unsigned int key);
 
 bool DynamicMeter_search(Hashtable* dynamics, const char* name, unsigned int* key);