diff --git a/setup_native/source/win32/customactions/sellang/sellang.cxx b/setup_native/source/win32/customactions/sellang/sellang.cxx
index 594bd70bc77c..75f6fb50c9a4 100644
--- a/setup_native/source/win32/customactions/sellang/sellang.cxx
+++ b/setup_native/source/win32/customactions/sellang/sellang.cxx
@@ -49,7 +49,7 @@ static bool GetMsiPropA( MSIHANDLE hMSI, const char* pPropName, char** ppValue )
         ZeroMemory( buff, nbytes );
         MsiGetPropertyA( hMSI, pPropName, buff, &sz );
         *ppValue = buff;
-        return ( strlen(buff) > 0 );
+        return ( buff[0] != '\0' );
     }
     return false;
 }