diff --git a/doc/guix.texi b/doc/guix.texi
index f24dc6b26b0de24bb4291e1e8c4a07f82ab42e3c..cb004d034df65b9daa0bcf9753417531842cb1f0 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -26050,7 +26050,7 @@ such that no two machines in the deployment have the same set of tags.
 A Digital Ocean region slug, such as @code{"nyc3"}.
 @item @code{size}
 A Digital Ocean size slug, such as @code{"s-1vcpu-1gb"}
-@item @code{enable-ipv6}
+@item @code{enable-ipv6?}
 Whether or not the droplet should be created with IPv6 networking.
 @end table
 @end deftp
diff --git a/gnu/machine/digital-ocean.scm b/gnu/machine/digital-ocean.scm
index 5ad7c4d4a35f05f6b0764b3fdbd755a6037a0651..6f7cf8fb30bd4b4c91cd9595d68bd7ed4ed63cb8 100644
--- a/gnu/machine/digital-ocean.scm
+++ b/gnu/machine/digital-ocean.scm
@@ -52,7 +52,7 @@ (define-module (gnu machine digital-ocean)
             digital-ocean-configuration-tags
             digital-ocean-configuration-region
             digital-ocean-configuration-size
-            digital-ocean-configuration-enable-ipv6
+            digital-ocean-configuration-enable-ipv6?
 
             digital-ocean-environment-type))
 
@@ -128,7 +128,7 @@ (define-record-type* <digital-ocean-configuration> digital-ocean-configuration
   (tags        digital-ocean-configuration-tags)         ; list of strings
   (region      digital-ocean-configuration-region)       ; string
   (size        digital-ocean-configuration-size)         ; string
-  (enable-ipv6 digital-ocean-configuration-enable-ipv6)) ; boolean
+  (enable-ipv6? digital-ocean-configuration-enable-ipv6?)) ; boolean
 
 (define (read-key-fingerprint file-name)
   "Read the private key at FILE-NAME and return the key's fingerprint as a hex
@@ -324,7 +324,7 @@ (define (deploy-digital-ocean target)
          (size (digital-ocean-configuration-size config))
          (ssh-key (digital-ocean-configuration-ssh-key config))
          (fingerprint (read-key-fingerprint ssh-key))
-         (enable-ipv6 (digital-ocean-configuration-enable-ipv6 config))
+         (enable-ipv6? (digital-ocean-configuration-enable-ipv6? config))
          (tags (digital-ocean-configuration-tags config))
          (request-body `(("name" . ,name)
                          ("region" . ,region)
@@ -332,7 +332,7 @@ (define (deploy-digital-ocean target)
                          ("image" . "debian-9-x64")
                          ("ssh_keys" . ,(vector fingerprint))
                          ("backups" . #f)
-                         ("ipv6" . ,enable-ipv6)
+                         ("ipv6" . ,enable-ipv6?)
                          ("user_data" . #nil)
                          ("private_networking" . #nil)
                          ("volumes" . #nil)