diff --git a/engine/qclib/qcc_pr_comp.c b/engine/qclib/qcc_pr_comp.c
index 2198c9483..be9a84b48 100644
--- a/engine/qclib/qcc_pr_comp.c
+++ b/engine/qclib/qcc_pr_comp.c
@@ -2581,6 +2581,7 @@ QCC_def_t *QCC_PR_ParseFunctionCall (QCC_def_t *func)	//warning, the func could
 			QCC_FreeTemp(QCC_PR_Statement(&pr_opcodes[OP_STORE_V], &def_ret, old, NULL));
 		else
 			QCC_FreeTemp(QCC_PR_Statement(&pr_opcodes[OP_STORE_F], &def_ret, old, NULL));
+		QCC_UnFreeTemp(old);
 		QCC_PR_ParseWarning(WARN_FIXEDRETURNVALUECONFLICT, "Return value conflict - output is inefficient");
 	}
 	else