diff --git a/.travis.yml b/.travis.yml
index 9941370..1de3d32 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,3 +15,13 @@ script:
   - cargo build --manifest-path ash/Cargo.toml
   - cargo build --manifest-path examples/Cargo.toml
   - cargo build --manifest-path generator/Cargo.toml
+
+branches:
+  only:
+    # This is where pull requests from "bors r+" are built.
+    - staging
+    # This is where pull requests from "bors try" are built.
+    - trying
+    # Uncomment this to enable building pull requests.
+    - master
+
diff --git a/appveyor.yml b/appveyor.yml
index 5b005a3..59336ff 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,3 +13,12 @@ install:
 build_script:
   - cargo build --manifest-path ash/Cargo.toml
   - cargo build --manifest-path examples/Cargo.toml
+
+branches:
+  only:
+    # This is where pull requests from "bors r+" are built.
+    - staging
+    # This is where pull requests from "bors try" are built.
+    - trying
+    # Uncomment this to enable building pull requests.
+    - master