diff --git a/src/modules/app_jsdt/app_jsdt_api.c b/src/modules/app_jsdt/app_jsdt_api.c
index ff4e629075e..c41d1d22176 100644
--- a/src/modules/app_jsdt/app_jsdt_api.c
+++ b/src/modules/app_jsdt/app_jsdt_api.c
@@ -1339,7 +1339,7 @@ int sr_kemi_jsdt_exec_func(duk_context *J, int eidx)
 {
 	sr_kemi_t *ket;
 	int ret;
-	struct timeval tvb, tve;
+	struct timeval tvb ={0}, tve = {0};
 	struct timezone tz;
 	unsigned int tdiff;
 	int sline = 0;