diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cc936115e37..5d4daa09fa7 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -67,7 +67,7 @@ jobs:
           # Other pre-commit checks
 
           set +e
-          pre-commit run --color=always --all-files
+          pre-commit run --color=always --all-files --show-diff-on-failure
           ((rc+=$?))
           set -e
 
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index af02504b404..08949c0517b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,7 +9,7 @@ repos:
         stages: [commit-msg]
 
   - repo: https://github.com/scop/pre-commit-shfmt
-    rev: v3.4.3-1
+    rev: v3.5.1-1
     hooks:
       - id: shfmt-docker
         types: [text]
diff --git a/completions/tar b/completions/tar
index 1c5fe851cec..ede594590d0 100644
--- a/completions/tar
+++ b/completions/tar
@@ -383,8 +383,7 @@ __tar_adjust_PREV_from_old_option()
     # deal with old style arguments here
     # $ tar cfTC # expects this sequence of arguments:
     # $ tar cfTC ARCHIVE_FILE PATTERNS_FILE CHANGE_DIR
-    if ((old_opt_used == 1 && cword > 1 && \
-        cword < ${#old_opt_parsed[@]} + 2)); then
+    if ((old_opt_used == 1 && cword > 1 && cword < ${#old_opt_parsed[@]} + 2)); then
         # make e.g. 'C' option from 'cffCT'
         prev="-${old_opt_parsed[cword - 2]}"
     fi