diff --git a/.appveyor.yml b/.appveyor.yml
index dc657b6d63..56648541bf 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -7,6 +7,7 @@ clone_folder: C:\deno
 clone_depth: 1
 
 environment:
+  RUSTC_WRAPPER: sccache
   APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
   DENO_BUILD_MODE: release
   DENO_BUILD_PATH: $(APPVEYOR_BUILD_FOLDER)\target\release
diff --git a/.travis.yml b/.travis.yml
index e1ad2a1530..ade134a59a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ git:
   depth: 1
 env:
   global:
+  - RUSTC_WRAPPER=sccache
   - RUST_BACKTRACE=full
   - PATH=$TRAVIS_BUILD_DIR/third_party/llvm-build/Release+Asserts/bin:$PATH
   - PYTHONPATH=third_party/python_packages