diff --git a/libs/surfaces/faderport8/faderport8.cc b/libs/surfaces/faderport8/faderport8.cc
index 8d2898c2f2..33d5b6e36d 100644
--- a/libs/surfaces/faderport8/faderport8.cc
+++ b/libs/surfaces/faderport8/faderport8.cc
@@ -918,6 +918,9 @@ FaderPort8::filter_stripables (StripableList& strips) const
 		case MixFX:
 			flt = &flt_auxbus;
 			break;
+		default:
+			assert (0);
+			// fall through
 		case MixAll:
 			allow_master = true;
 			flt = &flt_all;
diff --git a/libs/surfaces/faderport8/fp8_base.h b/libs/surfaces/faderport8/fp8_base.h
index 9dc658c290..56f2b0c4f0 100644
--- a/libs/surfaces/faderport8/fp8_base.h
+++ b/libs/surfaces/faderport8/fp8_base.h
@@ -155,7 +155,7 @@ namespace FP8Types {
 		MixMIDI,
 		MixOutputs,
 		MixFX,
-		MixUser,
+		MixUser
 	};
 
 };