diff --git a/srcpkgs/b2sum/template b/srcpkgs/b2sum/template
index 2145590ab69..55c5b5d0878 100644
--- a/srcpkgs/b2sum/template
+++ b/srcpkgs/b2sum/template
@@ -1,7 +1,7 @@
 # Template file for 'b2sum'
 pkgname=b2sum
 version=20140114
-revision=1
+revision=2
 wrksrc="blake2_code_${version}/b2sum"
 build_style=gnu-makefile
 hostmakedepends="unzip"
@@ -15,7 +15,7 @@ checksum=456e6ac99ed4661ef8502526b0927f790699d232fbaf5b0ddbe3a64cc8d612e9
 
 do_build() {
 	case "$XBPS_TARGET_MACHINE" in
-		i686*|x86_64*) _dir=../sse;;
+		i686*|x86_64*) _dir=../sse; CFLAGS+=" -msse2";;
 		*) _dir=../ref;;
 	esac
 	${CC} -std=c99 ${CFLAGS} -o b2sum *.c ${_dir}/blake*.c -I${_dir} ${LDFLAGS}