diff --git a/test/bench/package.json b/test/bench/package.json
index 98db94ba..e4efc2a3 100755
--- a/test/bench/package.json
+++ b/test/bench/package.json
@@ -9,7 +9,7 @@
   },
   "devDependencies": {
     "imagemagick": "^0.1.3",
-    "imagemagick-native": "^1.7.0",
+    "imagemagick-native": "mash/node-imagemagick-native",
     "gm": "^1.17.0",
     "async": "^0.9.0",
     "semver": "^4.3.0",
diff --git a/test/leak/leak.sh b/test/leak/leak.sh
index 15215026..e55605a9 100755
--- a/test/leak/leak.sh
+++ b/test/leak/leak.sh
@@ -3,6 +3,6 @@ if ! type valgrind >/dev/null; then
   exit 1
 fi
 
-curl -O https://raw.githubusercontent.com/jcupitt/libvips/master/libvips.supp test/leak/libvips.supp
+curl -O https://raw.githubusercontent.com/jcupitt/libvips/master/libvips.supp
 cd ../../
 G_SLICE=always-malloc G_DEBUG=gc-friendly valgrind --suppressions=test/leak/libvips.supp --suppressions=test/leak/sharp.supp --leak-check=full --show-leak-kinds=definite,indirect,possible --num-callers=20 --trace-children=yes npm test
diff --git a/test/unit/io.js b/test/unit/io.js
index 3976a32e..eb1bdc33 100755
--- a/test/unit/io.js
+++ b/test/unit/io.js
@@ -610,7 +610,7 @@ describe('Input/output', function() {
         .toFormat('png')
         .toFile(fixtures.path('output.svg.png'), function(err, info) {
           if (err) {
-            assert.strictEqual('Input file is of an unsupported image format', err.message);
+            assert.strictEqual(0, err.message.indexOf('Input file is of an unsupported image format'));
           } else {
             assert.strictEqual(true, info.size > 0);
             assert.strictEqual('png', info.format);