diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 41eec359..c7b23e0b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -45,14 +45,16 @@ jobs:
       - name: Check changed files coverage
         run: |
           # Get the list of changed Python files
-          CHANGED_FILES_SRC=$(git diff --name-only --diff-filter=AMR ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep '.py$')
-          echo "Changed Python files 1: $CHANGED_FILES_SRC"
+          CHANGED_FILES=$(git diff --name-only --diff-filter=AMR ${{ github.event.pull_request.base.sha }} ${{ github.sha }} | grep '.py$')
+          echo "Changed Python files: $CHANGED_FILES"
 
           # Convert list to comma-delimited string
-          CHANGED_FILES=$(echo "$CHANGED_FILES_SRC" | awk '{printf "%s,", $0} END {print ""}' | sed 's/,$//')
-          echo "Changed Python files 2: $CHANGED_FILES"
+          CHANGED_FILES=$(echo "$CHANGED_FILES" | awk '{printf "%s,", $0} END {print ""}' | sed 's/,$//')
           
           # Generate coverage report for changed files
+          CHANGED_FILES_REPORT = coverage report --include="$CHANGED_FILES"
+          echo "Changed Python files: $CHANGED_FILES_REPORT"
+
           # Fail if the coverage for changed files is below threshold
           coverage report --include="$CHANGED_FILES" | grep TOTAL | awk '{if ($4 < 80.0) exit 1}'
         shell: bash