diff --git a/contrib/build/net/net.bkl b/contrib/build/net/net.bkl
index ba4e545d18..a521dac043 100644
--- a/contrib/build/net/net.bkl
+++ b/contrib/build/net/net.bkl
@@ -26,10 +26,12 @@
         <sources>$(NETUTILS_SRC)</sources>
         <wx-lib>core</wx-lib>
         <wx-lib>base</wx-lib>
+        <cppflags-dmars>-w3</cppflags-dmars>
     </dll>
     
     <lib id="netutilslib" template="wx_contrib_lib" cond="SHARED=='0'">
         <sources>$(NETUTILS_SRC)</sources>
+        <cppflags-dmars>-w3</cppflags-dmars>
     </lib>
     
     <set var="MSVC6PRJ_MERGED_TARGETS" append="1">netutils=netutilslib+netutilsdll</set>