diff --git a/.github/workflows/cli-build-instructions.yml b/.github/workflows/cli-build-instructions.yml
index 19e937ce9..45cf0748f 100644
--- a/.github/workflows/cli-build-instructions.yml
+++ b/.github/workflows/cli-build-instructions.yml
@@ -346,9 +346,8 @@ jobs:
           # Look for changes affecting the first two fields of UnicodeData.txt (code point and name).
           sed 's/^\([^;]*;[^;]*\);.*$/\1/' unicodetools/mine/src/unicodetools/data/ucd/dev/UnicodeData.txt > merged-repertoire.txt
           sed 's/^\([^;]*;[^;]*\);.*$/\1/' base/unicodetools/data/ucd/dev/UnicodeData.txt > base-repertoire.txt
-          diff base-repertoire.txt merged-repertoire.txt
+          (diff base-repertoire.txt merged-repertoire.txt)
           echo "REPERTOIRE_CHANGED=$?" >> "$GITHUB_ENV"
-          exit 0
       - name: Get the CLDR_REF from pom.xml
         id: cldr_ref
         run: echo "CLDR_REF="$(mvn --file unicodetools/mine/src/pom.xml help:evaluate -Dexpression=cldr.version -q -DforceStdout | cut -d- -f3) >> $GITHUB_OUTPUT && cat ${GITHUB_OUTPUT}