diff --git a/config/linux-kgpe-d16.config b/config/linux-kgpe-d16.config
index 2c451e22..c925feb6 100644
--- a/config/linux-kgpe-d16.config
+++ b/config/linux-kgpe-d16.config
@@ -64,6 +64,7 @@ CONFIG_PCI_PRI=y
 # CONFIG_COREDUMP is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
+CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
diff --git a/config/linux-librem13v2.config b/config/linux-librem13v2.config
index ebb1dd56..f107eb10 100644
--- a/config/linux-librem13v2.config
+++ b/config/linux-librem13v2.config
@@ -63,6 +63,7 @@ CONFIG_PCI_PRI=y
 # CONFIG_COREDUMP is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
+CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
diff --git a/config/linux-linuxboot.config b/config/linux-linuxboot.config
index 1074b6ac..bd692577 100644
--- a/config/linux-linuxboot.config
+++ b/config/linux-linuxboot.config
@@ -84,6 +84,7 @@ CONFIG_PCI_PRI=y
 CONFIG_IA32_EMULATION=y
 CONFIG_NET=y
 CONFIG_PACKET=y
+CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
diff --git a/config/linux-x230.config b/config/linux-x230.config
index 3f13d327..ff9d94ad 100644
--- a/config/linux-x230.config
+++ b/config/linux-x230.config
@@ -64,6 +64,7 @@ CONFIG_PCI_PRI=y
 # CONFIG_COREDUMP is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
+CONFIG_UNIX=y
 CONFIG_INET=y
 CONFIG_SYN_COOKIES=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set