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-rw-r--r--main/utils.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/main/utils.c b/main/utils.c
index a19ed900f..8ed4a968a 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -1598,7 +1598,7 @@ void __ast_string_field_ptr_build_va(struct ast_string_field_mgr *mgr,
otherwise, use the empty space at the end of the current
pool
*/
- if ((*ptr)[0] != '0') {
+ if ((*ptr)[0] != '\0') {
target = (char *) *ptr;
available = strlen(target) + 1;
} else {