diff --git a/installation-images-SLES.spec b/installation-images-SLES.spec
index b5c80a8..45a5f91 100644
--- a/installation-images-SLES.spec
+++ b/installation-images-SLES.spec
@@ -46,6 +46,7 @@ BuildRequires:  sle12-desktop-migration
 BuildRequires:  openSUSE-release
 BuildRequires:  openSUSE-release-mini
 %endif
+BuildRequires:  vlan
 BuildRequires:  khmeros-fonts
 BuildRequires:  arabic-kacst-fonts
 BuildRequires:  thai-fonts
diff --git a/installation-images-openSUSE.spec b/installation-images-openSUSE.spec
index 69fbef5..01187d0 100644
--- a/installation-images-openSUSE.spec
+++ b/installation-images-openSUSE.spec
@@ -46,6 +46,7 @@ BuildRequires:  sle12-desktop-migration
 BuildRequires:  openSUSE-release
 BuildRequires:  openSUSE-release-mini
 %endif
+BuildRequires:  vlan
 BuildRequires:  khmeros-fonts
 BuildRequires:  arabic-kacst-fonts
 BuildRequires:  thai-fonts