diff --git a/tests/Sanity/smoke-test/dynamic-double/mutatee.cpp b/tests/Sanity/smoke-test/dynamic-double/mutatee.cpp
index eead3bb..0185df9 100644
--- a/tests/Sanity/smoke-test/dynamic-double/mutatee.cpp
+++ b/tests/Sanity/smoke-test/dynamic-double/mutatee.cpp
@@ -19,6 +19,7 @@ void incr2(void)
 int function_name(void)
 {
 	fprintf(stderr, "FUNCTION EXECUTED. VALUE = %i\n", a);
+        return 0;
 }
 
 int main(int argc, char **argv)
diff --git a/tests/Sanity/smoke-test/dynamic/mutatee.cpp b/tests/Sanity/smoke-test/dynamic/mutatee.cpp
index 111b0ab..2c5e928 100644
--- a/tests/Sanity/smoke-test/dynamic/mutatee.cpp
+++ b/tests/Sanity/smoke-test/dynamic/mutatee.cpp
@@ -14,6 +14,7 @@ void incr(void)
 int function_name(void)
 {
 	fprintf(stderr, "FUNCTION EXECUTED. VALUE = %i\n", a);
+        return 0;
 }
 
 int main(int argc, char **argv)