diff --git a/IncSet.h b/IncSet.h
index fe425330fd98f22fcfcb923f7ef85f44372e1280..c528f18c737c1c2da4466cbf2bafade4975ec989 100644
--- a/IncSet.h
+++ b/IncSet.h
@@ -24,7 +24,7 @@ typedef enum {
 #define IncSet_filter(inc_) (inc_->filtering ? inc_->modes[INC_FILTER].buffer : NULL)
 
 typedef struct IncMode_ {
-   char buffer[INCMODE_MAX];
+   char buffer[INCMODE_MAX+1];
    int index;
    FunctionBar* bar;
    bool isFilter;