fixed invalid return value

1 files changed, 1 insertions, 1 deletions

diff --git a/src/sp_execute.c b/src/sp_execute.c
index aadd145..f1ed8d0 100644
--- a/src/sp_execute.c
+++ b/src/sp_execute.c
@@ -190,7 +190,7 @@ static inline void sp_execute_handler(INTERNAL_FUNCTION_PARAMETERS, bool interna
   // execute_data, so we need to use a local variable to be able to match on
   // it later.
   zval ret_val;
-  if (EX(return_value) == NULL) {
+  if (EX(return_value) == NULL && return_value == NULL) {
     memset(&ret_val, 0, sizeof(ret_val));
     return_value = EX(return_value) = &ret_val;
   }