diff --git a/cgi/canned_responses.c b/cgi/canned_responses.c
line changes: +2/-0
index a1e4f29..3b09913
--- a/cgi/canned_responses.c
+++ b/cgi/canned_responses.c

@@ -36,9 +36,11 @@ void respond_405() {
 }
 
 void respond_JSON_Failure() {
+	printf("Content-type: application/json\r\n");
 	respond_simple_data(JSON_FAILURE, strlen(JSON_FAILURE));
 }
 
 void respond_JSON_Success() {
+	printf("Content-type: application/json\r\n");
 	respond_simple_data(JSON_SUCCESS, strlen(JSON_SUCCESS));
 }