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-rw-r--r--main/file.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/main/file.c b/main/file.c
index fa4c63bd9..59d39df8f 100644
--- a/main/file.c
+++ b/main/file.c
@@ -97,6 +97,10 @@ static int publish_format_update(const struct ast_format_def *f, struct stasis_m
RAII_VAR(struct ast_json_payload *, json_payload, NULL, ao2_cleanup);
RAII_VAR(struct ast_json *, json_object, NULL, ast_json_unref);
+ if (!type) {
+ return -1;
+ }
+
json_object = ast_json_pack("{s: s, s: o}",
"format", f->name,
"extensions", json_array_from_list(f->exts, "|"));