diff --git a/source/model/save.c b/source/model/save.c
index d5b2110..e7ac2bc 100644
--- a/source/model/save.c
+++ b/source/model/save.c
@@ -155,12 +155,20 @@ char* save_format_key(config_u_g_p* config, int index) {
 
 
 char* save_format_str_value(config_u_g_p* config, int index) {
-    char* value = yon_char_new("");
-    value = philos_format_cfg_str_size_memory(value, config->soft_restriction_size,config->soft_restriction_size_pow);
-    value = yon_char_unite(value, ":", NULL);
-    value = philos_format_cfg_str_size_memory(value, config->severe_limitation_size,config->severe_limitation_size_pow);
-    value = yon_char_unite(value, ":", NULL);
-    value = yon_char_unite(value, yon_char_from_int(config->soft_restriction_file), NULL);
+    char* value = NULL;
+    if (config->soft_restriction_size) {
+        value = yon_char_unite(philos_format_cfg_str_size_memory("", config->soft_restriction_size,config->soft_restriction_size_pow), NULL);
+    }
+    else {
+        value = yon_char_new("0");
+    }
+    if (config->severe_limitation_size) {
+        value = yon_char_unite(value, ":", philos_format_cfg_str_size_memory("", config->severe_limitation_size,config->severe_limitation_size_pow), NULL);
+    }
+    else {
+        value = yon_char_unite(value,":0", NULL);
+    }
+    value = yon_char_unite(value, ":", yon_char_from_int(config->soft_restriction_file), NULL);
     value = yon_char_unite(value, ":", NULL);
     value = yon_char_unite(value, yon_char_from_int(config->severe_limitation_file), NULL);
     value = yon_char_unite(value, ":", NULL);