diff --git a/src/pc/configfile.c b/src/pc/configfile.c
index cf2e7ac0c..d02e5947d 100644
--- a/src/pc/configfile.c
+++ b/src/pc/configfile.c
@@ -34,6 +34,7 @@ struct ConfigOption {
         float* floatValue;
         char* stringValue;
     };
+    int maxStringLength;
 };
 
 /*
@@ -177,7 +178,7 @@ static const struct ConfigOption options[] = {
     {.name = "discordrpc_enable",    .type = CONFIG_TYPE_BOOL, .boolValue = &configDiscordRPC},
     #endif
     // coop-specific
-    {.name = "coop_join_ip",                   .type = CONFIG_TYPE_STRING, .stringValue = (char*)&configJoinIp},
+    {.name = "coop_join_ip",                   .type = CONFIG_TYPE_STRING, .stringValue = (char*)&configJoinIp, .maxStringLength = MAX_CONFIG_STRING},
     {.name = "coop_join_port",                 .type = CONFIG_TYPE_UINT  , .uintValue   = &configJoinPort},
     {.name = "coop_host_port",                 .type = CONFIG_TYPE_UINT  , .uintValue   = &configHostPort},
     {.name = "coop_host_save_slot",            .type = CONFIG_TYPE_UINT  , .uintValue   = &configHostSaveSlot},
@@ -185,7 +186,7 @@ static const struct ConfigOption options[] = {
     {.name = "coop_player_knockback_strength", .type = CONFIG_TYPE_UINT  , .uintValue   = &configPlayerKnockbackStrength},
     {.name = "coop_stay_in_level_after_star",  .type = CONFIG_TYPE_UINT  , .boolValue   = &configStayInLevelAfterStar},
     {.name = "coop_network_system",            .type = CONFIG_TYPE_UINT  , .uintValue   = &configNetworkSystem},
-    {.name = "coop_player_name",               .type = CONFIG_TYPE_STRING, .stringValue = (char*)&configPlayerName},
+    {.name = "coop_player_name",               .type = CONFIG_TYPE_STRING, .stringValue = (char*)&configPlayerName, .maxStringLength = MAX_PLAYER_STRING},
     {.name = "coop_player_model",              .type = CONFIG_TYPE_UINT  , .uintValue   = &configPlayerModel},
     {.name = "coop_player_palette",            .type = CONFIG_TYPE_UINT  , .uintValue   = &configPlayerPalette},
     {.name = "coop_60fps",                     .type = CONFIG_TYPE_UINT  , .uintValue   = &config60Fps},
@@ -344,8 +345,8 @@ void configfile_load(const char *filename) {
                             sscanf(tokens[1], "%f", option->floatValue);
                             break;
                         case CONFIG_TYPE_STRING:
-                            memset(option->stringValue, '\0', MAX_CONFIG_STRING);
-                            strncpy(option->stringValue, tokens[1], MAX_CONFIG_STRING);
+                            memset(option->stringValue, '\0', option->maxStringLength);
+                            snprintf(option->stringValue, option->maxStringLength, "%s", tokens[1]);
                             break;
                         default:
                             assert(0); // bad type