diff --git a/.travis.yml b/.travis.yml
index 04d3ba9..f28473c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,14 +3,15 @@
 
 matrix:
   include:
-    - d: dmd-2.064.2
-    - d: dmd-2.065.0
-    - d: dmd-2.066.1
+    - d: dmd-2.068.0-b1
+    - d: dmd-2.067.1
       env:
         - COVERAGE=true
-    - d: dmd-2.067.0
-    - d: ldc-0.14.0
+    - d: dmd-2.066.1
+    - d: dmd-2.064.2
+    - d: dmd-2.065.0
     - d: ldc-0.15.1
+    - d: ldc-0.14.0
     - d: gdc-4.9.0
 
 script:
diff --git a/source/dub/project.d b/source/dub/project.d
index bc448ba..176a8f0 100644
--- a/source/dub/project.d
+++ b/source/dub/project.d
@@ -792,8 +792,8 @@
 				attributeName == "options";
 			
 			auto values = getRawBuildSetting(pack, allowEmptyString);
-			auto fixRelativePath = (string importPath) => buildNormalizedPath(pack.path.toString(), importPath);
-			auto ensureTrailingSlash = (string path) => path.endsWith(dirSeparator) ? path : path ~ dirSeparator;
+			string fixRelativePath(string importPath) { return buildNormalizedPath(pack.path.toString(), importPath); }
+			static string ensureTrailingSlash(string path) { return path.endsWith(dirSeparator) ? path : path ~ dirSeparator; }
 
 			static if(isRelativeDirectory) {
 				// Return full paths for the paths, making sure a