diff --git a/scripts/diffcheck.expected b/scripts/diffcheck.expected
new file mode 100644
index 00000000..3cc6ee77
--- /dev/null
+++ b/scripts/diffcheck.expected
@@ -0,0 +1,24 @@
+< |-
+< | 40
+< | API/RPC
+< | Stratum wire protocol
+< | Marek Palatinus
+< | Standard
+< | BIP number allocated
+< |-
+< | 41
+< | API/RPC
+< | Stratum mining protocol
+< | Marek Palatinus
+< | Standard
+< | BIP number allocated
+< |-
+< | 63
+< | Applications
+< | Stealth Addresses
+< | Peter Todd
+< | Standard
+< | BIP number allocated
+< | Leon Olsson Curr, Pearlwort Sneed, Andrew Poelstra
+> | Leon Olsson Curr and Pearlwort Sneed, Andrew Poelstra
+< |}
diff --git a/scripts/diffcheck.sh b/scripts/diffcheck.sh
index aa9f557c..793bcb84 100755
--- a/scripts/diffcheck.sh
+++ b/scripts/diffcheck.sh
@@ -2,15 +2,9 @@
 
 scripts/buildtable.pl >/tmp/table.mediawiki 2> /dev/null
 diff README.mediawiki /tmp/table.mediawiki | grep '^[<>] |' >/tmp/after.diff || true
-if git checkout HEAD^ && scripts/buildtable.pl >/tmp/table.mediawiki 2>/dev/null; then
-    diff README.mediawiki /tmp/table.mediawiki | grep '^[<>] |' >/tmp/before.diff || true
-    newdiff=$(diff -s /tmp/before.diff /tmp/after.diff -u | grep '^+')
-    if [ -n "$newdiff" ]; then
-        echo "$newdiff"
-        exit 1
-    fi
-    echo "README table matches expected table from BIP files"
-else
-    echo 'Cannot build previous commit table for comparison'
+newdiff=$(diff -s scripts/diffcheck.expected /tmp/after.diff -u | grep '^[-+]')
+if [ -n "$newdiff" ]; then
+    echo "$newdiff"
     exit 1
 fi
+echo "README table matches expected table from BIP files"