diff --git a/tests/regression.sh b/tests/regression.sh
index e89e55ef79d814f2e86715afdb05f8d1c248f794..529a7036fb7bf159d2890958735631766f64011b 100755
--- a/tests/regression.sh
+++ b/tests/regression.sh
@@ -37,6 +37,8 @@ target_crcfile="$target_datadir/$this.crc"
 
 if [ X"`echo | md5sum 2> /dev/null`" != X ]; then
     do_md5sum() { md5sum -b $1; }
+elif [ X"`echo | md5 2> /dev/null`" != X ]; then
+    do_md5sum() { md5 -r $1 | sed 's# \**\./# *./#'; }
 elif [ -x /sbin/md5 ]; then
     do_md5sum() { /sbin/md5 -r $1 | sed 's# \**\./# *./#'; }
 else