diff --git a/nixos/modules/installer/tools/nixos-install.sh b/nixos/modules/installer/tools/nixos-install.sh
index 4e10615f902f..c23d7e5b509d 100644
--- a/nixos/modules/installer/tools/nixos-install.sh
+++ b/nixos/modules/installer/tools/nixos-install.sh
@@ -73,11 +73,6 @@ if ! test -e "$mountPoint"; then
     exit 1
 fi
 
-if ! grep -F -q " $mountPoint " /proc/mounts; then
-    echo "$mountPoint doesn't appear to be a mount point"
-    exit 1
-fi
-
 
 # Mount some stuff in the target root directory.
 mkdir -m 0755 -p $mountPoint/dev $mountPoint/proc $mountPoint/sys $mountPoint/etc $mountPoint/run $mountPoint/home