diff --git a/ext/mcrypt/mcrypt.c b/ext/mcrypt/mcrypt.c
index 84b0c9248c0..74bc951c476 100644
--- a/ext/mcrypt/mcrypt.c
+++ b/ext/mcrypt/mcrypt.c
@@ -1138,9 +1138,9 @@ static char *php_mcrypt_get_key_size_str(
 		return str;
 	} else {
 		int i;
+		char *result = NULL;
 		smart_str str = {0};
 		smart_str_appends(&str, "Only keys of sizes ");
-		char *result = NULL;
 		
 		for (i = 0; i < key_size_count; ++i) {
 			if (i == key_size_count - 1) {