diff --git a/build.sh b/build.sh
index 917afde..6a10072 100755
--- a/build.sh
+++ b/build.sh
@@ -41,7 +41,7 @@ command__install_tests() {
 
 command__tests() {
     if [ "$TRAVIS" = "true" ]; then
-        coverage run --source=vdirsyncer/,tests/ --module pytest
+        coverage run --source=vdirsyncer/ --module pytest
         coveralls
     else
         py.test