diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 536b749c0c5..227850aa627 100644
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -2102,7 +2102,7 @@ PHP_FUNCTION(iconv_mime_decode_headers)
 			break;
 		}
 
-		if (decoded_header.c != NULL) {
+		if (decoded_header.c == NULL) {
 			break;
 		}