diff --git a/tools/regression/geom/ConfCmp/Makefile b/tools/regression/geom/ConfCmp/Makefile
index c737bf62969a..e4ac676a5dcc 100644
--- a/tools/regression/geom/ConfCmp/Makefile
+++ b/tools/regression/geom/ConfCmp/Makefile
@@ -7,7 +7,7 @@ SRCS+=	subr_sbuf.c
 .PATH:	../../../../sys/kern
 
 NOOBJ=	youbet
-WARNS=	5
+WARNS?=	5
 CFLAGS+=	 -g -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -static
 # Uncomment for ElectricFence
 #LDADD += -lefence -L/usr/local/lib
diff --git a/tools/regression/geom/MdLoad/Makefile b/tools/regression/geom/MdLoad/Makefile
index 1543c17b070c..ef8972cde7e2 100644
--- a/tools/regression/geom/MdLoad/Makefile
+++ b/tools/regression/geom/MdLoad/Makefile
@@ -7,7 +7,7 @@ LDADD=	-lsbuf -lbsdxml
 NOMAN=	sorry
 
 
-WARNS=4
+WARNS?=	4
 .include "bsd.prog.mk"
 
 test:	${PROG}