diff --git a/src/config.c b/src/config.c
index f9ae7d5ac9..992a2f29ce 100644
--- a/src/config.c
+++ b/src/config.c
@@ -375,7 +375,13 @@ void config_set_defaults()
 				destValue->value_uint8 = platform_get_locale_temperature_format();
 			}
 			else if (strcmp(property->property_name, "player_name") == 0) {
-				destValue->value_string = _strdup(platform_get_username());
+				utf8* username = platform_get_username();
+
+				if (username) {
+					destValue->value_string = _strdup(username);
+				} else {
+					destValue->value_string = _strdup(language_get_string(STR_PLAYER_DEFAULT_NAME));
+				}				
 			}
 			else {
 				// Use static default
diff --git a/src/platform/posix.c b/src/platform/posix.c
index d683164229..850ad1df5a 100644
--- a/src/platform/posix.c
+++ b/src/platform/posix.c
@@ -33,7 +33,6 @@
 #include "../addresses.h"
 #include "../config.h"
 #include "../localisation/language.h"
-#include "../localisation/string_ids.h"
 #include "../openrct2.h"
 #include "../util/util.h"
 #include "platform.h"
@@ -883,7 +882,7 @@ utf8* platform_get_username() {
 	if (pw) {
 		return pw->pw_name;
 	} else {
-		return language_get_string(STR_PLAYER_DEFAULT_NAME);
+		return NULL;
 	}
 }
 
diff --git a/src/platform/windows.c b/src/platform/windows.c
index f27e2b563c..31c8fc7fd5 100644
--- a/src/platform/windows.c
+++ b/src/platform/windows.c
@@ -31,7 +31,6 @@
 #include "../addresses.h"
 #include "../openrct2.h"
 #include "../localisation/language.h"
-#include "../localisation/string_ids.h"
 #include "../util/util.h"
 #include "../config.h"
 #include "platform.h"
@@ -982,7 +981,7 @@ utf8* platform_get_username() {
 
 	DWORD usernameLength = UNLEN + 1;
 	if (!GetUserName(username, &usernameLength)) {
-		strcpy(username, language_get_string(STR_PLAYER_DEFAULT_NAME));
+		return NULL;
 	}
 
 	return username;