diff --git a/snippets/test1/test1.c b/snippets/test1/test1.c
index aaf302a..cbee741 100644
--- a/snippets/test1/test1.c
+++ b/snippets/test1/test1.c
@@ -154,10 +154,10 @@ int main (void) {
     my_diff = diff;
     pthread_mutex_unlock(&counterMutex);
 
-    if (diff != lastDiff) {
-      lastDiff = diff;
-      double f = 1.0 / (((double) diff) / 1000000.0);
-      printf("%d %d %d %f\n", ec, counter, diff, f);
+    if (my_diff != lastDiff) {
+      lastDiff = my_diff;
+      double f = 1.0 / (((double) my_diff) / 1000000.0);
+      printf("%d %d %d %f\n", my_ec, my_counter, my_diff, f);
     }
   }
 }