diff --git a/src/hardware/hameg-hmo/protocol.c b/src/hardware/hameg-hmo/protocol.c
index 836ce3ac..f787dcc0 100644
--- a/src/hardware/hameg-hmo/protocol.c
+++ b/src/hardware/hameg-hmo/protocol.c
@@ -199,8 +199,6 @@ static const uint64_t vdivs[][2] = {
 	{ 2, 1 },
 	{ 5, 1 },
 	{ 10, 1 },
-	{ 20, 1 },
-	{ 50, 1 },
 };
 
 static const char *scope_analog_channel_names[] = {