diff --git a/test/externalTests.sh b/test/externalTests.sh
index 6ff2ebc5b..1cc0af19e 100755
--- a/test/externalTests.sh
+++ b/test/externalTests.sh
@@ -42,7 +42,55 @@ DIR=$(mktemp -d)
     git clone --depth 1 https://github.com/OpenZeppelin/zeppelin-solidity.git "$DIR"
     cd "$DIR"
     npm install
-    cp "$SOLJSON" ./node_modules/solc/soljson.js
+    find . -name soljson.js -exec cp "$SOLJSON" {} \;
+
+    # This is a patch that lets truffle ignore the pre-release compiler warning
+    cat > truffle.patch <<EOF
+--- node_modules/truffle/build/cli.bundled.js	2017-11-27 16:56:47.114830112 +0100
++++ /tmp/patched	2017-11-27 16:52:31.887064115 +0100
+@@ -313846,9 +313846,12 @@
+     });
+ 
+     output = JSON.parse(output);
++	var errors = output.errors.filter(function(solidity_error) {
++		return solidity_error.formattedMessage.indexOf("pre-release compiler") < 0;
++    });
+ 
+-    if (output.errors) {
+-      throw new CompileError(output.errors[0].formattedMessage);
++    if (errors) {
++      throw new CompileError(errors[0].formattedMessage);
+     }
+ 
+     return {
+@@ -313901,9 +313904,13 @@
+       return {error: importErrorKey};
+     });
+ 
+-    output = JSON.parse(output);
++	output = JSON.parse(output);
++	
++	var errors = output.errors.filter(function(solidity_error) {
++		return solidity_error.formattedMessage.indexOf("pre-release compiler") < 0;
++    });
+ 
+-    var nonImportErrors = output.errors.filter(function(solidity_error) {
++    var nonImportErrors = errors.filter(function(solidity_error) {
+       // If the import error key is not found, we must not have an import error.
+       // This means we have a *different* parsing error which we should show to the user.
+       // Note: solc can return multiple parsing errors at once.
+@@ -313917,7 +313924,7 @@
+ 
+     // Now, all errors must be import errors.
+     // Filter out our forced import, then get the import paths of the rest.
+-    var imports = output.errors.filter(function(solidity_error) {
++    var imports = errors.filter(function(solidity_error) {
+       return solidity_error.message.indexOf(failingImportFileName) < 0;
+     }).map(function(solidity_error) {
+       var matches = solidity_error.formattedMessage.match(/import[^'"]+("|')([^'"]+)("|');/);
+EOF
+
+    patch node_modules/truffle/build/cli.bundled.js ./truffle.patch
     npm run test
 )
 rm -rf "$DIR"