diff --git a/config/kernel_linux_headers_install.in b/config/kernel_linux_headers_install.in
index 072dd287..7db770d2 100644
--- a/config/kernel_linux_headers_install.in
+++ b/config/kernel_linux_headers_install.in
@@ -108,6 +108,16 @@ config KERNEL_INSTALL_V_2_6_21_3
     prompt "2.6.21.3"
     depends on KERNEL_VERSION_SEE_EXTRAVERSION
 
+config KERNEL_INSTALL_V_2_6_21_4
+    bool
+    prompt "2.6.21.4"
+    depends on KERNEL_VERSION_SEE_EXTRAVERSION
+
+config KERNEL_INSTALL_V_2_6_21_5
+    bool
+    prompt "2.6.21.5"
+    depends on KERNEL_VERSION_SEE_EXTRAVERSION
+
 # CT_INSERT_VERSION_ABOVE
 # Don't remove above line!
 endchoice
@@ -136,5 +146,7 @@ config KERNEL_VERSION
     default "2.6.21.1" if KERNEL_INSTALL_V_2_6_21_1
     default "2.6.21.2" if KERNEL_INSTALL_V_2_6_21_2
     default "2.6.21.3" if KERNEL_INSTALL_V_2_6_21_3
+    default "2.6.21.4" if KERNEL_INSTALL_V_2_6_21_4
+    default "2.6.21.5" if KERNEL_INSTALL_V_2_6_21_5
 # CT_INSERT_VERSION_STRING_ABOVE
 # Don't remove above line!