diff --git a/src/external/tunings/src/Tunings.cpp b/src/external/tunings/src/Tunings.cpp
index a516e6f5..5411a1b6 100644
--- a/src/external/tunings/src/Tunings.cpp
+++ b/src/external/tunings/src/Tunings.cpp
@@ -516,25 +516,16 @@ namespace Tunings
 
     KeyboardMapping startScaleOnAndTuneNoteTo( int scaleStart, int midiNote, double freq )
     {
-        std::ostringstream oss;
-        oss.imbue( std::locale( "C" ) );
-        oss << "! Automatically generated mapping, tuning note " << midiNote << " to " << freq << " hz\n"
-            << "!\n"
-            << "! Size of Map\n"
-            << 0 << "\n"
-            << "! First and Last Midi Notes to map - map the entire keyboard\n"
-            << 0 << "\n" << 127 << "\n"
-            << "! Middle note where the first entry in the scale is mapped.\n"
-            << scaleStart << "\n"
-            << "! Reference not where frequency is fixed\n"
-            << midiNote << "\n"
-            << "! Frequency for midi note " << midiNote << "\n"
-            << freq << "\n"
-            << "! Scale degree for formal octave. This is am empty mapping so:\n"
-            << 0 << "\n"
-            << "! Mapping. This is an empty mapping so list no keys\n";
-
-        return parseKBMData( oss.str() );
+        KeyboardMapping res;
+        res.count = 0;
+        res.firstMidi = 0;
+        res.lastMidi = 127;
+        res.middleNote = scaleStart;
+        res.tuningConstantNote = midiNote;
+        res.tuningFrequency = freq;
+        res.tuningPitch = freq / MIDI_0_FREQ;
+        res.octaveDegrees = 0;
+        return res;
     }
 
 }