1 files changed, 1 insertions, 1 deletions
diff --git a/Header.h b/Header.h
index 02131f1f..6d13fc47 100644
--- a/Header.h
+++ b/Header.h
@@ -35,7 +35,7 @@ MeterModeId Header_addMeterByName(Header* this, const char* name, int column);
 
 void Header_setMode(Header* this, int i, MeterModeId mode, int column);
 
-Meter* Header_addMeterByClass(Header* this, const MeterClass* type, int param, int column);
+Meter* Header_addMeterByClass(Header* this, const MeterClass* type, unsigned int param, int column);
 
 int Header_size(const Header* this, int column);