diff --git a/src/emucore/Console.cxx b/src/emucore/Console.cxx
index 8e94c3739..0977386af 100644
--- a/src/emucore/Console.cxx
+++ b/src/emucore/Console.cxx
@@ -276,9 +276,9 @@ void Console::redetectFrameLayout()
 string Console::formatFromFilename() const
 {
   static const BSPF::array2D<string, 6, 2> Pattern = {{
-    { R"([ _\-(\[<]+NTSC[ -]?50)",      "NTSC50"  },
-    { R"([ _\-(\[<]+PAL[ -]?60)",       "PAL60"   },
-    { R"([ _\-(\[<]+SECAM[ -]?60)",     "SECAM60" },
+    { R"([ _\-(\[<]+NTSC[ _-]?50)",     "NTSC50"  },
+    { R"([ _\-(\[<]+PAL[ _-]?60)",      "PAL60"   },
+    { R"([ _\-(\[<]+SECAM[ _-]?60)",    "SECAM60" },
     { R"([ _\-(\[<]+NTSC[ _\-)\]>]?)",  "NTSC"    },
     { R"([ _\-(\[<]+PAL[ _\-)\]>]?)",   "PAL"     },
     { R"([ _\-(\[<]+SECAM[ _\-)\]>]?)", "SECAM"   }