diff --git a/main/pbx.c b/main/pbx.c
index e370ae7431..241d0641a7 100644
--- a/main/pbx.c
+++ b/main/pbx.c
@@ -8239,6 +8239,8 @@ int ast_build_timing(struct ast_timing *i, const char *info_in)
 	char *info;
 	int j, num_fields, last_sep = -1;
 
+	i->timezone = NULL;
+
 	/* Check for empty just in case */
 	if (ast_strlen_zero(info_in)) {
 		return 0;
@@ -8258,8 +8260,6 @@ int ast_build_timing(struct ast_timing *i, const char *info_in)
 	/* save the timezone, if it is specified */
 	if (num_fields == 5) {
 		i->timezone = ast_strdup(info + last_sep + 1);
-	} else {
-		i->timezone = NULL;
 	}
 
 	/* Assume everything except time */
diff --git a/utils/extconf.c b/utils/extconf.c
index 99df9e9ec1..7131e13b17 100644
--- a/utils/extconf.c
+++ b/utils/extconf.c
@@ -4439,6 +4439,8 @@ int ast_build_timing(struct ast_timing *i, const char *info_in)
 	char *info;
 	int j, num_fields, last_sep = -1;
 
+	i->timezone = NULL;
+
 	/* Check for empty just in case */
 	if (ast_strlen_zero(info_in)) {
 		return 0;
@@ -4458,8 +4460,6 @@ int ast_build_timing(struct ast_timing *i, const char *info_in)
 	/* save the timezone, if it is specified */
 	if (num_fields == 5) {
 		i->timezone = ast_strdup(info + last_sep + 1);
-	} else {
-		i->timezone = NULL;
 	}
 
 	/* Assume everything except time */