diff --git a/core/my_basic.c b/core/my_basic.c
index 14dcbce..c726a11 100755
--- a/core/my_basic.c
+++ b/core/my_basic.c
@@ -6219,6 +6219,8 @@ static void _real_to_str_std(real_t r, char* str, size_t size) {
 		if(str[i] == ',') {
 			str[i] = '.';
 
+			break;
+		} else if(str[i] == _ZERO_CHAR) {
 			break;
 		}
 	}