diff --git a/tools/regression/bin/sh/expansion/arith2.0 b/tools/regression/bin/sh/expansion/arith2.0
index c4fdccd5531b..3e4bb2f99d55 100644
--- a/tools/regression/bin/sh/expansion/arith2.0
+++ b/tools/regression/bin/sh/expansion/arith2.0
@@ -22,6 +22,7 @@ check "4611686018427387904" 4611686018427387904
 check "0x4000000000000000" 4611686018427387904
 check "0400000000000000000000" 4611686018427387904
 check "0x4Ab0000000000000" 5381801554707742720
+check "010" 8
 
 # try out all operators
 v=42