diff --git a/.circleci/config.yml b/.circleci/config.yml
index c6f5aa6..815e762 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -10,9 +10,8 @@ jobs:
       - checkout
       - restore_cache:
           keys:
-            - backendsdk01-{{ checksum "backend-sdk/Cargo.toml" }}
+            - backendsdk01-{{ checksum "Cargo.toml" }}
       - run: | #TODO: enable 'stable' and 'beta' once `allocator_api` becomes stable
-          cd backend-sdk/
           rustup toolchain install nightly-2019-09-23
           rustup default nightly-2019-09-23
           rustup override set nightly-2019-09-23
@@ -27,7 +26,7 @@ jobs:
           paths:
             - ~/.cargo
             - ~/.rustup
-          key: backendsdk01-{{ checksum "backend-sdk/Cargo.toml" }}
+          key: backendsdk01-{{ checksum "Cargo.toml" }}
 
 workflows:
   version: 2