diff --git a/update.sh b/update.sh
index 6e6718c..8c78a70 100755
--- a/update.sh
+++ b/update.sh
@@ -2,15 +2,22 @@
 # SPDX-FileCopyrightText: 2022 Maxwell G (@gotmax23)
 # SPDX-License-Identifier: MIT
 
+# USAGE: After bumping the version in moby-engine.spec and downloading the new
+# sources, run this script in moby-engine's distgit repository to update the
+# package's virtual Provides.
+
 set -euo pipefail
 
+# Note(gotmax23): I have a separate update.sh script in my $PATH.
+# When that exists, this script will run that first.
+# You can ignore this.
 if command -v update.sh && [ "$#" -gt 0 ]; then
     update.sh "$@"
 fi
 
 fedpkg prep
 
-version="$(rpmspec -q --srpm --qf '%{version}\n' *.spec)"
+version="$(rpmspec -D '_sourcedir %(pwd)' -q --srpm --qf '%{version}\n' *.spec)"
 
 cat << EOF > provides.spec.inc
 # Bundled dependencies
@@ -28,7 +35,9 @@ EOF
 
 grep -v -e '^$' -e '^#' "moby-${version}/vendor.conf" | sort | awk '{print "Provides:       bundled(golang("$1")) = "$2}' >> provides.spec.inc
 
+# Note(gotmax23): Ignore this also. My script commits the specfile,
+# and then this ammends that commit to add the updated provides.spec.inc.
 if command -v update.sh && [ "$#" -gt 0 ]; then
-    git add --update
+    git add provides.spec.inc
     git commit --gpg-sign --amend --no-edit
 fi