diff --git a/modules/base.nix b/modules/base.nix
index 521bfb2a..11357ab0 100644
--- a/modules/base.nix
+++ b/modules/base.nix
@@ -134,6 +134,7 @@ in {
       proc = dir {};
       run = dir {};
       sys = dir {};
+      tmp = dir {};
     };
   };
 }
diff --git a/modules/s6/scripts/rc.init b/modules/s6/scripts/rc.init
index d689282c..7b5bfd1e 100755
--- a/modules/s6/scripts/rc.init
+++ b/modules/s6/scripts/rc.init
@@ -17,6 +17,7 @@ shift
 
 mount -t proc none /proc
 mount -t sysfs none /sys
+mount -t tmpfs none /tmp
 # s6-linux-init mounts /dev before this script is called
 mkdir /dev/pts
 mount -t devpts none /dev/pts