diff --git a/tools/CalypTools.h b/tools/CalypTools.h
index c826270..7759436 100644
--- a/tools/CalypTools.h
+++ b/tools/CalypTools.h
@@ -52,7 +52,7 @@ class CalypFrame;
 class CalypStream;
 class CalypModuleIf;
 
-#define MAX_NUMBER_INPUTS 10
+#define MAX_NUMBER_INPUTS 255
 #define MAX_NUMBER_CHANNELS 4
 
 class CalypTools : public CalypToolsCmdParser