diff --git a/etc/mtree/BSD.local.dist b/etc/mtree/BSD.local.dist
index 14a75180e2c2..06c83469856c 100644
--- a/etc/mtree/BSD.local.dist
+++ b/etc/mtree/BSD.local.dist
@@ -181,6 +181,8 @@
         nls
             C
             ..
+            cs_CZ.ISO_8859-2
+            ..
             da_DK.ISO_8859-1
             ..
             de_AT.ISO_8859-1
diff --git a/etc/mtree/BSD.usr.dist b/etc/mtree/BSD.usr.dist
index 0e26acdf1361..f9598d50a611 100644
--- a/etc/mtree/BSD.usr.dist
+++ b/etc/mtree/BSD.usr.dist
@@ -397,6 +397,8 @@
         libg++
         ..
         locale
+            cs_CZ.ISO_8859-2
+            ..
             da_DK.ISO_8859-1
             ..
             da_DK.DIS_8859-15
@@ -639,6 +641,8 @@
         nls
             C
             ..
+            cs_CZ.ISO_8859-2
+            ..
             da_DK.ISO_8859-1
             ..
             da_DK.DIS_8859-15