diff --git a/Pioneer-DDJ-FLX4_neu.midi.xml b/Pioneer-DDJ-FLX4_neu.midi.xml
index d3cf8a4..d260b5f 100644
--- a/Pioneer-DDJ-FLX4_neu.midi.xml
+++ b/Pioneer-DDJ-FLX4_neu.midi.xml
@@ -483,6 +483,16 @@
                     <fourteen-bit-msb/>
                 </options>
             </control>
+            <control>
+                <group>[Master]</group>
+                <key>headGain</key>
+                <description>MIDI Learned from 220 messages.</description>
+                <status>0xB6</status>
+                <midino>0x0D</midino>
+                <options>
+                    <fourteen-bit-msb/>
+                </options>
+            </control>
             <control>
                 <group>[Channel1]</group>
                 <key>reverseroll</key>
@@ -1093,6 +1103,16 @@
                     <fourteen-bit-lsb/>
                 </options>
             </control>
+            <control>
+                <group>[Master]</group>
+                <key>headGain</key>
+                <description>MIDI Learned from 220 messages.</description>
+                <status>0xB6</status>
+                <midino>0x2D</midino>
+                <options>
+                    <fourteen-bit-lsb/>
+                </options>
+            </control>
             <control>
                 <group>[EqualizerRack1_[Channel1]_Effect1]</group>
                 <key>parameter1</key>