diff --git a/netwerk/util/public/makefile.win b/netwerk/util/public/makefile.win
index b4b17c9145d2..aa014dfcd018 100644
--- a/netwerk/util/public/makefile.win
+++ b/netwerk/util/public/makefile.win
@@ -18,10 +18,10 @@
 MODULE = necko
 
 DEPTH = ..\..\..
+include <$(DEPTH)/config/config.mak>
 
 // temporary, until we land:
 !ifndef NECKO
-include <$(DEPTH)/config/config.mak>
 PUBLIC = $(DEPTH)\netwerk\dist\include
 !endif
 
diff --git a/netwerk/util/src/makefile.win b/netwerk/util/src/makefile.win
index 6fc07c9eeaa8..db480db3894b 100644
--- a/netwerk/util/src/makefile.win
+++ b/netwerk/util/src/makefile.win
@@ -16,10 +16,10 @@
 MODULE = necko
 
 DEPTH = ..\..\..
+include <$(DEPTH)/config/config.mak>
 
 // temporary, until we land:
 !ifndef NECKO
-include <$(DEPTH)/config/config.mak>
 PUBLIC = $(DEPTH)\netwerk\dist\include
 !endif
 
diff --git a/xpcom/tests/makefile.win b/xpcom/tests/makefile.win
index a4269d4fa115..39ddfd1c01cc 100644
--- a/xpcom/tests/makefile.win
+++ b/xpcom/tests/makefile.win
@@ -16,6 +16,7 @@
 # Reserved.
 
 DEPTH=..\..
+include <$(DEPTH)/config/config.mak>
 
 IGNORE_MANIFEST=1