diff --git a/travis/build.sh b/travis/build.sh
index bb1dbd3efb2e94d1f04a32d2e5ec44b907d83f3f..841328339f77dcdd5d040a2be9232311aee236c1 100755
--- a/travis/build.sh
+++ b/travis/build.sh
@@ -3,5 +3,4 @@ set -ex
 
 # Linux Debug
 ./sky/tools/gn --debug
-ninja -j 2 -C out/Debug
-./sky/tools/test_sky --debug --child-processes=1
+ninja -j 1 -C out/Debug