diff --git a/Makefile b/Makefile
index ecb25bc..14aab08 100644
--- a/Makefile
+++ b/Makefile
@@ -28,11 +28,8 @@ docs: $(HTML)
 
 rsc: $(GEN_RSC)
 
-%.capsman.rsc: %.template.rsc Makefile
-	sed -e '/\/interface\/wifi\//d' -e '/\/interface\/wireless\//d' -e 's|%TEMPL%|.capsman|' \
-		-e '/^# NOT \/caps-man\/ #$$/,/^# NOT \/caps-man\/ #$$/d' \
-		-e '/^# !!/,/^# !!/c # !! Do not edit this file, it is generated from template!' \
-		< $< > $@
+%.capsman.rsc: %.template.rsc contrib/template-capsman.sh
+	contrib/template-capsman.sh $< > $@
 
 %.local.rsc: %.template.rsc Makefile
 	sed -e '/\/caps-man\//d' -e '/\/interface\/wifi\//d' -e 's|%TEMPL%|.local|' \
diff --git a/contrib/template-capsman.sh b/contrib/template-capsman.sh
new file mode 100755
index 0000000..5771b53
--- /dev/null
+++ b/contrib/template-capsman.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -e
+
+sed \
+	-e '/\/interface\/wifi\//d' \
+	-e '/\/interface\/wireless\//d' \
+	-e 's|%TEMPL%|.capsman|' \
+	-e '/^# NOT \/caps-man\/ #$/,/^# NOT \/caps-man\/ #$/d' \
+	-e '/^# !!/,/^# !!/c # !! Do not edit this file, it is generated from template!' \
+	< "${1}"