diff --git a/utils/HelpGen/src/scriptbinder.cpp b/utils/HelpGen/src/scriptbinder.cpp
index eb769b7461..e5a60fa3df 100644
--- a/utils/HelpGen/src/scriptbinder.cpp
+++ b/utils/HelpGen/src/scriptbinder.cpp
@@ -33,7 +33,7 @@
 
 // helper functions
 
-static size_t log2(size_t nr)
+static size_t wx_log2(size_t nr)
 {
     size_t tmp = 0;
     while (nr >= 2 )
@@ -66,7 +66,7 @@ void ScriptStream::WriteBytes( const void* srcBuf, size_t count )
     if ( m_Size + count > m_Capacity )
     {
         m_Capacity =
-            (  0x2 << (log2( m_Size + count ) + 1 ) );
+            (  0x2 << (wx_log2( m_Size + count ) + 1 ) );
 
         if ( m_Capacity < 128 ) m_Capacity = 128;