diff --git a/src/tools/moc/main.cpp b/src/tools/moc/main.cpp
index 2f0d11a0567..3df832cc2e8 100644
--- a/src/tools/moc/main.cpp
+++ b/src/tools/moc/main.cpp
@@ -536,7 +536,10 @@ int runMoc(int argc, char **argv)
         if (!out)
 #endif
         {
-            fprintf(stderr, "moc: Cannot create %s\n", QFile::encodeName(output).constData());
+            const auto fopen_errno = errno;
+            fprintf(stderr, "moc: Cannot create %s. Error: %s\n",
+                    QFile::encodeName(output).constData(),
+                    strerror(fopen_errno));
             return 1;
         }
 
@@ -551,7 +554,7 @@ int runMoc(int argc, char **argv)
 #endif
             {
                 const auto fopen_errno = errno;
-                fprintf(stderr, "moc: Cannot create JSON output file %s. %s\n",
+                fprintf(stderr, "moc: Cannot create JSON output file %s. Error: %s\n",
                         QFile::encodeName(jsonOutputFileName).constData(),
                         strerror(fopen_errno));
             }
@@ -601,7 +604,7 @@ int runMoc(int argc, char **argv)
 #endif
         {
             const auto fopen_errno = errno;
-            fprintf(stderr, "moc: Cannot create dep output file '%s'. %s\n",
+            fprintf(stderr, "moc: Cannot create dep output file '%s'. Error: %s\n",
                     QFile::encodeName(depOutputFileName).constData(),
                     strerror(fopen_errno));
         }