diff --git a/ci/do_ci.sh b/ci/do_ci.sh
index b6d23f763f..b394de03c8 100755
--- a/ci/do_ci.sh
+++ b/ci/do_ci.sh
@@ -107,8 +107,6 @@ elif [[ "$1" == "benchmark" ]]; then
   exit 0
 elif [[ "$1" == "format" ]]; then
   tools/format.sh
-  # normalize file endings according to .gitattributes
-  git add --renormalize .
   CHANGED="$(git ls-files --modified)"
   if [[ ! -z "$CHANGED" ]]; then
     echo "The following files have changes:"
diff --git a/tools/format.sh b/tools/format.sh
index 1b150dbca3..7d5249d5e3 100755
--- a/tools/format.sh
+++ b/tools/format.sh
@@ -16,8 +16,9 @@ fi
 
 # Correct common miscapitalizations.
 "${SED[@]}" 's/Open[t]elemetry/OpenTelemetry/g' $($FIND -type f -print)
-# No CRLF line endings.
-"${SED[@]}" 's/\r$//' $($FIND -type f -print)
+# No CRLF line endings, except Windows files.
+"${SED[@]}" 's/\r$//' $($FIND -name '*.ps1' -prune -o \
+  -name '*.cmd' -prune -o -type f -print)
 # No trailing spaces.
 "${SED[@]}" 's/ \+$//' $($FIND -type f -print)