diff --git a/vm.nim b/vm.nim
index 89c323f..85ebe70 100644
--- a/vm.nim
+++ b/vm.nim
@@ -86,7 +86,7 @@ proc run*(chunk: Chunk): InterpretResult =
     
     when profileInstructions:
       let startTime = getMonoTime()
-      runtimes[ins].inc
+      runcounts[ins] += 1f
 
     case ins:
       of opPop: