diff --git a/python-pint.spec b/python-pint.spec
index c40f80d..8bc980a 100644
--- a/python-pint.spec
+++ b/python-pint.spec
@@ -5,7 +5,8 @@ Summary:        Physical quantities module
 
 # The entire source is BSD-3-Clause, except:
 #   - pint/_vendor/appdirs.py is MIT, but is unbundled in %%prep
-#   - pint/_vendor/flexcache.py is also BSD-3-Clause
+#   - pint/_vendor/flexcache.py is also BSD-3-Clause, but is unbundled in
+#     %%prep
 License:        BSD-3-Clause
 URL:            https://github.com/hgrecco/pint
 Source0:        %{pypi_source Pint}
@@ -25,11 +26,6 @@ constants.}
 %package -n python3-pint
 Summary:        %{summary}
 
-# TODO: Package this separately so it can be devendored/unbundled.
-# pint/_vendor/flexcache.py
-# https://github.com/hgrecco/flexcache
-Provides:       bundled(python3dist(flexcache)) = 0.2
-
 %description -n python3-pint %{_description}
 
 # We omit the “uncertainties” extra because python-uncertainties is not yet
@@ -51,13 +47,20 @@ sed -r -i '/pytest-cov/d' setup.cfg
 # http://github.com/ActiveState/appdirs
 # Provides:       bundled(python3dist(appdirs)) = 1.4.4
 rm -vf pint/_vendor/appdirs.py
+# Unbundle python-flexcache
+# https://github.com/hgrecco/flexcache
+# Provides:       bundled(python3dist(flexcache)) = 0.2
+rm -vf pint/_vendor/flexcache.py
 # Add devendored dependencies back in as regular dependencies
-sed -r -i 's/^setup_requires/install_requires = appdirs\n&/' setup.cfg
+sed -r -i 's/^setup_requires/install_requires = appdirs; flexcache\n&/' \
+    setup.cfg
 # The find-then-modify pattern keeps us from discarding mtimes on sources that
 # do not need modification.
 find pint -type f -exec \
-    gawk '/^from \.+_vendor import (appdirs)/ { print FILENAME; nextfile }' '{}' '+' |
-  xargs -r -t sed -r -i 's/^from \.+_vendor (import (appdirs))/\1/'
+    gawk '/^from \.+_vendor import (appdirs|flexcache)/ {
+        print FILENAME; nextfile }' '{}' '+' |
+  xargs -r -t sed -r -i \
+      's/^from \.+_vendor (import (appdirs|flexcache))/\1/'
 
 %generate_buildrequires
 # We omit the “uncertainties” extra because python-uncertainties is not yet