diff --git a/Vocaluxe/Lib/Input/CHIDAPI.cs b/Vocaluxe/Lib/Input/CHIDAPI.cs
index 8dc12659..1ec63509 100644
--- a/Vocaluxe/Lib/Input/CHIDAPI.cs
+++ b/Vocaluxe/Lib/Input/CHIDAPI.cs
@@ -178,6 +178,8 @@ namespace Vocaluxe.Lib.Input
             else
                 data = null;
 
+            Marshal.FreeHGlobal(dataPtr);
+
             return result;
         }