diff --git a/src/main.cpp b/src/main.cpp
index 80ca33b..3d8ea00 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -41,13 +41,13 @@ int main(int argc, char** argv) {
     auto mutex_handle = CreateMutexW(nullptr, 0, L"MassBuilderSaveTool");
 
     if(!mutex_handle) {
-        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error initialising the app",
-                                 "There was an error initialising the mutex.",nullptr);
+        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error",
+                                 "There was an error initialising the single-instance checker.",nullptr);
         return EXIT_FAILURE;
     }
 
     if(GetLastError() == ERROR_ALREADY_EXISTS) {
-        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error initialising the app",
+        SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error",
                                  "There can be only one running instance of the application.",nullptr);
         return EXIT_FAILURE;
     }