diff --git a/tests/compat.sh b/tests/compat.sh
index fc2bfab..1454fec 100755
--- a/tests/compat.sh
+++ b/tests/compat.sh
@@ -1106,8 +1106,7 @@
 
 echo "------------------------------------------------------------------------"
 
-if [ $FAILED -ne 0 -o $SRVMEM -ne 0 ];
-then
+if [ $FAILED -ne 0 -o $SRVMEM -ne 0 ]; then
     printf "FAILED"
 else
     printf "PASSED"
@@ -1123,4 +1122,9 @@
 echo " ($PASSED / $TESTS tests ($SKIPPED skipped$MEMREPORT))"
 
 FAILED=$(( $FAILED + $SRVMEM ))
+if [ $FAILED -gt 255 ]; then
+    # Clamp at 255 as caller gets exit code & 0xFF
+    # (so 256 would be 0, or success, etc)
+    FAILED=255
+fi
 exit $FAILED