diff --git a/profiles/desc/tcl.desc b/profiles/desc/tcl.desc
new file mode 100644
index 0000000000..acf4047ac6
--- /dev/null
+++ b/profiles/desc/tcl.desc
@@ -0,0 +1,9 @@
+# Copyright 2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# This file contains descriptions of TCL USE_EXPAND flags.
+
+debug - Build the debug version
+instrumentation - Build the instrumentation version
+instrumentation-debug - Build the instrumentation-debug version
+performance - Build the performance version
diff --git a/sys-cluster/TCL/TCL-1.0.ebuild b/sys-cluster/TCL/TCL-1.0.ebuild
index 18aac3d507..d5dab80cca 100644
--- a/sys-cluster/TCL/TCL-1.0.ebuild
+++ b/sys-cluster/TCL/TCL-1.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 2019-2021 Gentoo Authors
+# Copyright 2019-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -13,10 +13,10 @@ LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64"
 IUSE_TCL="
-	tcl-debug
-	tcl-instrumentation
-	tcl-instrumentation-debug
-	+tcl-performance
+	tcl_debug
+	tcl_instrumentation
+	tcl_instrumentation-debug
+	+tcl_performance
 "
 IUSE="${IUSE_TCL} fti scr veloc"
 
@@ -46,10 +46,10 @@ src_configure() {
 		--includedir="${EPREFIX}/usr/include/TCL"
 		--with-mpi="${EPREFIX}/usr"
 
-		$(use_enable tcl-debug debug)
-		$(use_enable tcl-instrumentation instrumentation)
-		$(use_enable tcl-instrumentation-debug instrumentation-debug)
-		$(use_enable tcl-performance performance)
+		$(use_enable tcl_debug debug)
+		$(use_enable tcl_instrumentation instrumentation)
+		$(use_enable tcl_instrumentation-debug instrumentation-debug)
+		$(use_enable tcl_performance performance)
 	)
 
 	if use fti; then
diff --git a/sys-cluster/TCL/metadata.xml b/sys-cluster/TCL/metadata.xml
index ff9564c6b9..57b2447ecf 100644
--- a/sys-cluster/TCL/metadata.xml
+++ b/sys-cluster/TCL/metadata.xml
@@ -12,10 +12,6 @@
 	<use>
 		<flag name="fti">Enable <pkg>sys-cluster/fti</pkg> backend</flag>
 		<flag name="scr">Enable <pkg>sys-cluster/scr</pkg> backend</flag>
-		<flag name="tcl-debug">Build the debug version</flag>
-		<flag name="tcl-instrumentation">Build the instrumentation version</flag>
-		<flag name="tcl-instrumentation-debug">Build the instrumentation-debug version</flag>
-		<flag name="tcl-performance">Build the performance version</flag>
 		<flag name="veloc">Enable <pkg>sys-cluster/veloc</pkg> backend</flag>
 	</use>
 </pkgmetadata>