1 files changed, 1 insertions, 0 deletions

diff --git a/src/fstring.h b/src/fstring.h
index 9d88bd4..fe34804 100644
--- a/src/fstring.h
+++ b/src/fstring.h
@@ -128,6 +128,7 @@ namespace Bu
                  */
                 void append( const chr *pData )
                 {
+                        if( !pData ) return;
                         long nLen;
                         for( nLen = 0; pData[nLen] != (chr)0; nLen++ );
                         if( nLen == 0 )