diff --git a/rigs/dummy/sdrsharp.c b/rigs/dummy/sdrsharp.c
index 0f95cdcef..e8b5dace6 100644
--- a/rigs/dummy/sdrsharp.c
+++ b/rigs/dummy/sdrsharp.c
@@ -39,8 +39,8 @@
 #define FALSE 0
 
 
-#define MAXCMDLEN 8192
-#define MAXXMLLEN 8192
+#define MAXCMDLEN 128
+#define MAXXMLLEN 128
 #define MAXARGLEN 128
 #define MAXBANDWIDTHLEN 4096