diff --git a/mozilla/security/coreconf/config.mk b/mozilla/security/coreconf/config.mk
index 0eb5fc93f85..9e606f2d50d 100644
--- a/mozilla/security/coreconf/config.mk
+++ b/mozilla/security/coreconf/config.mk
@@ -56,7 +56,7 @@ include $(CORE_DEPTH)/coreconf/command.mk
 #       each OS release.                                              #
 #######################################################################
 
-ifeq (,$(filter-out BSD_OS NetBSD OS2,$(OS_TARGET)))
+ifeq (,$(filter-out FreeBSD BSD_OS NetBSD OS2,$(OS_TARGET)))
 include $(CORE_DEPTH)/coreconf/$(OS_TARGET).mk
 else
 include $(CORE_DEPTH)/coreconf/$(OS_CONFIG).mk