diff --git a/common/utils/assertions.h b/common/utils/assertions.h
index 3a2dd817f3..573036b1d9 100644
--- a/common/utils/assertions.h
+++ b/common/utils/assertions.h
@@ -33,9 +33,8 @@
 #define _Assert_Exit_							\
   if (getenv("gdbStacks")) {						\
     char tmp [1000];							\
-    sprintf(tmp,"gdb -ex='set confirm off' -ex 'thread apply all bt' -ex q -p %d < /dev/null", \
-	    getpid(), getpid());					\
-    (void) system(tmp);						\
+    sprintf(tmp,"gdb -ex='set confirm off' -ex 'thread apply all bt' -ex q -p %d < /dev/null", getpid());  \
+    __attribute__((unused)) int dummy=system(tmp);						\
   }									\
   fprintf(stderr, "\nExiting execution\n");				\
   fflush(stdout);							\