diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 509a89b7b..d9f7295f0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -451,7 +451,7 @@ test-rust-stable:
   image: ethcore/rust:stable
   before_script:
     - git submodule update --init --recursive
-    - export JS_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF $CI_BUILD_REF@{1} | grep \.js | wc -l)
+    - export JS_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF^ $CI_BUILD_REF | grep \.js | wc -l)
     - echo $JS_FILES_MODIFIED
     - if [ -z $JS_FILES_MODIFIED ]; then echo "skip js test"; fi
   script:
@@ -468,7 +468,7 @@ test-rust-beta:
   image: ethcore/rust:beta
   before_script:
     - git submodule update --init --recursive
-    - export JS_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF $CI_BUILD_REF@{1} | grep \.js | wc -l)
+    - export JS_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF^ $CI_BUILD_REF | grep \.js | wc -l)
     - echo $JS_FILES_MODIFIED
     - if [ -z $JS_FILES_MODIFIED ]; then echo "skip js test"; fi
   script:
@@ -486,7 +486,7 @@ test-rust-nightly:
   image: ethcore/rust:nightly
   before_script:
     - git submodule update --init --recursive
-    - export JS_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF $CI_BUILD_REF@{1} | grep \.js | wc -l)
+    - export JS_FILES_MODIFIED=$(git --no-pager diff --name-only $CI_BUILD_REF^ $CI_BUILD_REF | grep \.js | wc -l)
     - echo $JS_FILES_MODIFIED
     - if [ -z $JS_FILES_MODIFIED ]; then echo "skip js test"; fi
   script: