diff --git a/filesystem/PKGBUILD b/filesystem/PKGBUILD
index 749b7efb..06426a01 100644
--- a/filesystem/PKGBUILD
+++ b/filesystem/PKGBUILD
@@ -67,7 +67,7 @@ sha256sums=('742a7d66b7a5ebd2b8461728c5b44a46b2305fd2116208eecae5f45828938ea0'
             '22c0d481c7717eee7be0b29c69df15f65d39f16e4af50ad21919bd59259896d1'
             '5f7aa3a776dbdaae78a27e608bf004bf50d5aaace2c2b03581d940b771bc8582'
             '91f1f918cf13deab0124082086e990786113b0e710dbda4678d8fc14905ad94d'
-            '6afbe2cdb04d1304cdb0ebcf679955fa8d2bb00e58480311c5d3b0eb0e7a9af3'
+            'b8abe6231cd2b089d708d3e3097ef8c279af1e1594aa15c6eaab4150ed9dffdc'
             '6c0ca979c7b146b3750103b1296a399764f4e1b222ee091d3aa072b6da16c1a5'
             'cbec90c9403826bf6d8dd1fed16240b9d8695ec15df5dcdab7e485bb46c016ab'
             '1b5adfbee606fc68c4fbba5d8caded4f463bd5eed9438cf2c560129d42ba4346'
diff --git a/filesystem/profile b/filesystem/profile
index 98486704..5f4c1b0a 100644
--- a/filesystem/profile
+++ b/filesystem/profile
@@ -77,18 +77,8 @@ SYSCONFDIR="${SYSCONFDIR:=/etc}"
 # them set to the default Windows temporary directory or unset
 # can have unexpected consequences for msys2 apps, so we define 
 # our own to match GNU/Linux behaviour.
-#
-# Note: this uppercase/lowercase workaround does not seem to work.
-# In fact, it has been removed from Cygwin some years ago. See:
-#
-#     * https://cygwin.com/git/gitweb.cgi?p=cygwin-apps/base-files.git;a=commitdiff;h=3e54b07
-#     * https://cygwin.com/git/gitweb.cgi?p=cygwin-apps/base-files.git;a=commitdiff;h=7f09aef
-#
 ORIGINAL_TMP="${ORIGINAL_TMP:-${TMP}}"
 ORIGINAL_TEMP="${ORIGINAL_TEMP:-${TEMP}}"
-unset TMP TEMP
-tmp=$(exec cygpath -w "$ORIGINAL_TMP" 2> /dev/null)
-temp=$(exec cygpath -w "$ORIGINAL_TEMP" 2> /dev/null)
 TMP="/tmp"
 TEMP="/tmp"
 
@@ -148,7 +138,7 @@ then
   export ACLOCAL_PATH
 fi
 
-export PATH MANPATH INFOPATH PKG_CONFIG_PATH PKG_CONFIG_SYSTEM_INCLUDE_PATH PKG_CONFIG_SYSTEM_LIBRARY_PATH USER TMP TEMP PRINTER HOSTNAME PS1 SHELL tmp temp ORIGINAL_TMP ORIGINAL_TEMP ORIGINAL_PATH CONFIG_SITE
+export PATH MANPATH INFOPATH PKG_CONFIG_PATH PKG_CONFIG_SYSTEM_INCLUDE_PATH PKG_CONFIG_SYSTEM_LIBRARY_PATH USER TMP TEMP PRINTER HOSTNAME PS1 SHELL ORIGINAL_TMP ORIGINAL_TEMP ORIGINAL_PATH CONFIG_SITE
 unset PATH_SEPARATOR
 
 if [ "$MAYBE_FIRST_START" = "true" ]; then