diff --git a/src/keymap.c b/src/keymap.c
index 053bad637..ef30cdbfc 100644
--- a/src/keymap.c
+++ b/src/keymap.c
@@ -501,14 +501,14 @@ BLOCK_HEAP  *psHeap;
 	/* Get some memory for our binding */
 	newMapping = (KEY_MAPPING*)MALLOC(sizeof(KEY_MAPPING));
 
-	ASSERT( newMapping, "Couldn't allocate memory for a key mapping" );
+	ASSERT( newMapping != NULL, "Couldn't allocate memory for a key mapping" );
 
 	/* Plus one for the terminator */
 
 
 
 	newMapping->pName = (STRING*)MALLOC(strlen(name)+1);
-	ASSERT( newMapping->pName, "Couldn't allocate the memory for the string in a mapping" );
+	ASSERT( newMapping->pName != NULL, "Couldn't allocate the memory for the string in a mapping" );
 
 	memSetBlockHeap(psHeap);