diff --git a/CHANGELOG.md b/CHANGELOG.md
index d67fa93e1..1b833b8a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,6 +61,7 @@ BUG FIXES:
   - guests/fedora: do not use biosdevname if it is not installed [GH-5707]
   - guests/freebsd: provide an argument to the backup file [GH-5516, GH-5517]
   - guests/funtoo: fix incorrect path in configure networks [GH-4812]
+  - guests/openbsd: output newline after inserted public key [GH-5881]
   - guests/tinycore: fix change hostname functionality [GH-5623]
   - guests/windows: Create rsync folder prior to rsync-ing. [GH-5282]
   - guests/windows: Changing hostname requires reboot again since
diff --git a/plugins/guests/openbsd/cap/insert_public_key.rb b/plugins/guests/openbsd/cap/insert_public_key.rb
index ca837e23e..42437283c 100644
--- a/plugins/guests/openbsd/cap/insert_public_key.rb
+++ b/plugins/guests/openbsd/cap/insert_public_key.rb
@@ -11,7 +11,7 @@ module VagrantPlugins
           machine.communicate.tap do |comm|
             comm.execute("mkdir -p ~/.ssh")
             comm.execute("chmod 0700 ~/.ssh")
-            comm.execute("printf '#{contents}' >> ~/.ssh/authorized_keys")
+            comm.execute("printf '#{contents}\\n' >> ~/.ssh/authorized_keys")
             comm.execute("chmod 0600 ~/.ssh/authorized_keys")
           end
         end