1 files changed, 3 insertions, 1 deletions
diff --git a/idl/inc/lex.hxx b/idl/inc/lex.hxx
index 238f5b904d20..2f816358bca8 100644
--- a/idl/inc/lex.hxx
+++ b/idl/inc/lex.hxx
@@ -140,7 +140,9 @@ class SvTokenStream
     int             GetNextChar();
     int             GetFastNextChar()
                     {
-                        return aBufStr[nBufPos++];
+                        return (nBufPos < aBufStr.getLength())
+                            ? aBufStr[nBufPos++]
+                            : '\0';
                     }
 
     void            FillTokenList();