diff --git a/.travis.yml b/.travis.yml
index c4f11b7cf..c892b40dc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,8 @@
 language: java
 jdk:
-  - oraclejdk8
\ No newline at end of file
+  - oraclejdk8
+cache:
+  directories:
+  - $HOME/.m2
+after_script:
+  - rm -rf $HOME/.m2/repository/org/teavm
\ No newline at end of file
diff --git a/README.md b/README.md
index 38ff1e579..c17b93c53 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 TeaVM
 =====
 
+[![Build Status](https://travis-ci.org/konsoletyper/teavm.svg?branch=selenium)](https://travis-ci.org/konsoletyper/teavm)
+
 What is TeaVM?
 --------------
 
diff --git a/tools/maven/plugin/src/main/java/org/teavm/maven/MavenSourceFileProviderLookup.java b/tools/maven/plugin/src/main/java/org/teavm/maven/MavenSourceFileProviderLookup.java
index 9d6567645..3b6242f79 100644
--- a/tools/maven/plugin/src/main/java/org/teavm/maven/MavenSourceFileProviderLookup.java
+++ b/tools/maven/plugin/src/main/java/org/teavm/maven/MavenSourceFileProviderLookup.java
@@ -85,7 +85,12 @@ public class MavenSourceFileProviderLookup {
             ArtifactResolutionResult result = repositorySystem.resolve(request);
             for (Artifact resolvedArtifact : result.getArtifacts()) {
                 if (resolvedArtifact.getFile() != null) {
-                    providers.add(new JarSourceFileProvider(resolvedArtifact.getFile()));
+                    File file = resolvedArtifact.getFile();
+                    if (!file.isDirectory()) {
+                        providers.add(new JarSourceFileProvider(file));
+                    } else {
+                        providers.add(new DirectorySourceFileProvider(file));
+                    }
                 }
             }
         }