diff --git a/plugins/network/dns/bind9_resolver_stats b/plugins/network/dns/bind9_resolver_stats
index 7963aff3..86e410d5 100755
--- a/plugins/network/dns/bind9_resolver_stats
+++ b/plugins/network/dns/bind9_resolver_stats
@@ -9,7 +9,7 @@
 #    20th December 2012
 #
 # License:
-#    GPL-2
+#    GPLv2
 #
 # Usage:
 #    Place in /etc/munin/plugins/ (or link it there using ln -s)
diff --git a/plugins/network/dns/bind9_server_stats b/plugins/network/dns/bind9_server_stats
index 9bd78c28..4d495982 100755
--- a/plugins/network/dns/bind9_server_stats
+++ b/plugins/network/dns/bind9_server_stats
@@ -9,7 +9,7 @@
 #    20th December 2012
 #
 # License:
-#    GPL-2
+#    GPLv2
 #
 # Usage:
 #    Place in /etc/munin/plugins/ (or link it there using ln -s)
diff --git a/plugins/network/dns/bind9_socket_stats b/plugins/network/dns/bind9_socket_stats
index 082bb18f..be742f33 100755
--- a/plugins/network/dns/bind9_socket_stats
+++ b/plugins/network/dns/bind9_socket_stats
@@ -9,7 +9,7 @@
 #    20th December 2012
 #
 # License:
-#    GPL-2
+#    GPLv2
 #
 # Usage:
 #    Place in /etc/munin/plugins/ (or link it there using ln -s)
diff --git a/plugins/postgresql/pgbouncer_client_connections b/plugins/postgresql/pgbouncer_client_connections
index 0f774911..5283d8ab 100755
--- a/plugins/postgresql/pgbouncer_client_connections
+++ b/plugins/postgresql/pgbouncer_client_connections
@@ -9,7 +9,7 @@
 #    20th December 2012
 #
 # License:
-#    GPL-2
+#    GPLv2
 #
 # Usage:
 #    Place in /etc/munin/plugins/ (or link it there using ln -s)
diff --git a/plugins/postgresql/pgbouncer_maxwait b/plugins/postgresql/pgbouncer_maxwait
index 2d77c4f3..b6091363 100755
--- a/plugins/postgresql/pgbouncer_maxwait
+++ b/plugins/postgresql/pgbouncer_maxwait
@@ -6,7 +6,7 @@
 #    Dave Fennell <dave@microtux.co.uk>
 #
 # License:
-#    GPL-2
+#    GPLv2
 #
 # Created:
 #    20th December 2012
diff --git a/plugins/postgresql/pgbouncer_server_connections b/plugins/postgresql/pgbouncer_server_connections
index 26868122..f795f47d 100755
--- a/plugins/postgresql/pgbouncer_server_connections
+++ b/plugins/postgresql/pgbouncer_server_connections
@@ -9,7 +9,7 @@
 #    20th December 2012
 #
 # License:
-#    GPL-2
+#    GPLv2
 #
 # Usage:
 #    Place in /etc/munin/plugins/ (or link it there using ln -s)