diff --git a/Makefile b/Makefile
index 93bec7e..983b067 100644
--- a/Makefile
+++ b/Makefile
@@ -65,6 +65,8 @@ CKSUM=		sha256sum -c
 CKSUMQ=		--quiet
 .elif ${OS} == "Darwin"
 CKSUM=		shasum -a 256 -c
+.elif ${OS} == "FreeBSD"
+CKSUM=		shasum -a 256 -c
 .endif
 
 FETCH=		scripts/fetch.sh
diff --git a/smoler/img.sh b/smoler/img.sh
index 8ef4afd..0b886c9 100755
--- a/smoler/img.sh
+++ b/smoler/img.sh
@@ -3,7 +3,7 @@
 OS=$(uname -s|tr 'A-Z' 'a-z')
 
 case $OS in
-linux|darwin) ;;
+linux|darwin|freebsd) ;;
 *)
 	echo "unsupported platform"
 	exit 1