diff --git a/NEWS.md b/NEWS.md
index c0b5ff65..4f2c544f 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -14,6 +14,7 @@ Red Panda C++ Version 0.13.2
   - enhancement: redirect stdio to a file while debugging ( must use gdb server mode to debug)
   - fix: parser can't correctly handle variable definitions that don't have spaces like 'int*x';
   - fix: parser can't correctly handle function parameters like 'int *x' 
+  - fix: caret dispears when at '\t' under Windows  7
 
 Red Panda C++ Version 0.13.1
  - enhancement: suppoort localization info in project templates
diff --git a/RedPandaIDE/qsynedit/SynEdit.cpp b/RedPandaIDE/qsynedit/SynEdit.cpp
index 87212b38..8a01073b 100644
--- a/RedPandaIDE/qsynedit/SynEdit.cpp
+++ b/RedPandaIDE/qsynedit/SynEdit.cpp
@@ -1250,7 +1250,7 @@ BufferCoord SynEdit::getPreviousLeftBrace(int x, int y)
 
 int SynEdit::charColumns(QChar ch) const
 {
-    if (ch == ' ')
+    if (ch == ' ' || ch == '\t')
         return 1;
     //return std::ceil((int)(fontMetrics().horizontalAdvance(ch) * dpiFactor()) / (double)mCharWidth);
     return std::ceil((int)(fontMetrics().horizontalAdvance(ch)) / (double)mCharWidth);