diff --git a/src/mumble_exe/mumble_exe.cpp b/src/mumble_exe/mumble_exe.cpp
index 6431060bb..2ec5d64ec 100644
--- a/src/mumble_exe/mumble_exe.cpp
+++ b/src/mumble_exe/mumble_exe.cpp
@@ -17,7 +17,7 @@ typedef int (*DLL_DEBUG_MAIN)(int, char **);
 
 // Alert shows a fatal error dialog and waits for the user to click OK.
 static void Alert(LPCWSTR title, LPCWSTR msg) {
-	MessageBox(NULL, msg, title, MB_OK|MB_ICONERROR);
+	MessageBox(nullptr, msg, title, MB_OK|MB_ICONERROR);
 }
 
 // Get the current Mumble version built into this executable.
@@ -39,7 +39,7 @@ static const std::wstring GetMumbleVersion() {
 static const std::wstring GetExecutableDirPath() {
 	wchar_t path[MAX_PATH];
 
-	if (GetModuleFileNameW(NULL, path, MAX_PATH) == 0)
+	if (GetModuleFileNameW(nullptr, path, MAX_PATH) == 0)
 		return std::wstring();
 
 	if (!PathRemoveFileSpecW(path))
@@ -161,7 +161,7 @@ int main(int argc, char **argv) {
 		return -2;
 	}
 
-	HMODULE dll = LoadLibraryExW(abs_dll_path.c_str(), NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+	HMODULE dll = LoadLibraryExW(abs_dll_path.c_str(), nullptr, LOAD_WITH_ALTERED_SEARCH_PATH);
 	if (!dll) {
 		Alert(L"Mumble Launcher Error -3", L"Failed to load mumble_app.dll.");
 		return -3;
@@ -204,7 +204,7 @@ int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, wchar_t *cmdAr
 		return -2;
 	}
 
-	HMODULE dll = LoadLibraryExW(abs_dll_path.c_str(), NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+	HMODULE dll = LoadLibraryExW(abs_dll_path.c_str(), nullptr, LOAD_WITH_ALTERED_SEARCH_PATH);
 	if (!dll) {
 		Alert(L"Mumble Launcher Error -3", L"Failed to load mumble_app.dll.");
 		return -3;
@@ -217,7 +217,7 @@ int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE prevInstance, wchar_t *cmdAr
 	}
 
 	(void) cmdArg;
-	int rc = entry_point(instance, prevInstance, NULL, cmdShow);
+	int rc = entry_point(instance, prevInstance, nullptr, cmdShow);
 
 	return rc;
 }