diff --git a/examples/main.c b/examples/main.c
index 50f444e692c8ee9cfd3453cd7b3c9b1e4749a2d3..70bf3792b82f590d60779acb1726ff71a027253c 100644
--- a/examples/main.c
+++ b/examples/main.c
@@ -290,7 +290,8 @@ int main(int argc, char *argv[]) {
 
 /* Do we have debugging checks ? */
 #ifdef SWIFT_DEBUG_CHECKS
-  message("WARNING: Debugging checks activated. Code will be slower !");
+  if (myrank == 0)
+    message("WARNING: Debugging checks activated. Code will be slower !");
 #endif
 
   /* Do we choke on FP-exceptions ? */