diff --git a/src/shared/util.c b/src/shared/util.c
index e1e5645..0a0308c 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -65,7 +65,7 @@ void *util_memdup(const void *src, size_t size)
 void util_debug_va(util_debug_func_t function, void *user_data,
 				const char *format, va_list va)
 {
-	char str[78];
+	char str[MAX_INPUT];
 
 	if (!function || !format)
 		return;