diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2bef22c..c278515 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Rust compilation prerequisites (Ubuntu)
-        if: contains("${{ matrix.os }}", "ubuntu")
+        if: contains(matrix.os, "ubuntu")
         run: |
           sudo apt update
           sudo apt install -y \
@@ -30,12 +30,12 @@ jobs:
           rustup component add rustfmt clippy rust-src
 
       - name: Install Cargo (MacOS)
-        if: contains("${{ matrix.os }}", "macos")
+        if: contains(matrix.os, "macos")
         run: curl https://sh.rustup.rs -sSf | sh
 
       # We've run into out-of-disk error when compiling Polkadot in the next step, so we free up some space this way.
       - name: Free Disk Space (Ubuntu)
-        if: contains("${{ matrix.os }}", "ubuntu")
+        if: contains(matrix.os, "ubuntu")
         uses: jlumbroso/free-disk-space@54081f138730dfa15788a46383842cd2f914a1be # 1.3.1
         with:
           android: true # This alone is a 12 GB save.
@@ -72,7 +72,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: brew install docker
-        if: contains("${{ matrix.os }}", "macos")
+        if: contains(matrix.os, "macos")
 
       # We've run into out-of-disk error when compiling Polkadot in the next step, so we free up some space this way.
       - name: Free Disk Space (Ubuntu)