1 files changed, 1 insertions, 1 deletions
diff --git a/IncSet.c b/IncSet.c
index fe8db49e..2eb77ef4 100644
--- a/IncSet.c
+++ b/IncSet.c
@@ -151,7 +151,7 @@ bool IncSet_handleKey(IncSet* this, int ch, Panel* panel, IncMode_GetPanelValue
          }
       }
       doSearch = false;
-   } else if (isprint((char)ch) && (mode->index < INCMODE_MAX)) {
+   } else if (ch < 255 && isprint((char)ch) && (mode->index < INCMODE_MAX)) {
       mode->buffer[mode->index] = ch;
       mode->index++;
       mode->buffer[mode->index] = 0;