diff --git a/cstruct-async.opam b/cstruct-async.opam
index fbc73b1e..7bd52108 100644
--- a/cstruct-async.opam
+++ b/cstruct-async.opam
@@ -8,7 +8,7 @@ license:      "ISC"
 dev-repo: "git+https://github.com/mirage/ocaml-cstruct.git"
 bug-reports:  "https://github.com/mirage/ocaml-cstruct/issues"
 tags: [ "org:mirage" "org:ocamllabs" ]
-doc: "https://mirage.githbu.io/ocaml-cstruct/"
+doc: "https://mirage.github.io/ocaml-cstruct/"
 build: [
   ["dune" "subst"] {pinned}
   ["dune" "build" "-p" name "-j" jobs]
diff --git a/cstruct-lwt.opam b/cstruct-lwt.opam
index 34a4d17f..6afab69f 100644
--- a/cstruct-lwt.opam
+++ b/cstruct-lwt.opam
@@ -7,7 +7,7 @@ homepage:     "https://github.com/mirage/ocaml-cstruct"
 license:      "ISC"
 dev-repo: "git+https://github.com/mirage/ocaml-cstruct.git"
 bug-reports:  "https://github.com/mirage/ocaml-cstruct/issues"
-doc: "https://mirage.githbu.io/ocaml-cstruct/"
+doc: "https://mirage.github.io/ocaml-cstruct/"
 tags: [ "org:mirage" "org:ocamllabs" ]
 build: [
   ["dune" "subst"] {pinned}
diff --git a/cstruct-unix.opam b/cstruct-unix.opam
index 6d233107..ae418f6d 100644
--- a/cstruct-unix.opam
+++ b/cstruct-unix.opam
@@ -7,7 +7,7 @@ homepage:     "https://github.com/mirage/ocaml-cstruct"
 license:      "ISC"
 dev-repo: "git+https://github.com/mirage/ocaml-cstruct.git"
 bug-reports:  "https://github.com/mirage/ocaml-cstruct/issues"
-doc: "https://mirage.githbu.io/ocaml-cstruct/"
+doc: "https://mirage.github.io/ocaml-cstruct/"
 
 tags: [ "org:mirage" "org:ocamllabs" ]
 build: [
diff --git a/cstruct.opam b/cstruct.opam
index acb1ce9c..c9f62a30 100644
--- a/cstruct.opam
+++ b/cstruct.opam
@@ -7,7 +7,8 @@ homepage:     "https://github.com/mirage/ocaml-cstruct"
 license:      "ISC"
 dev-repo: "git+https://github.com/mirage/ocaml-cstruct.git"
 bug-reports:  "https://github.com/mirage/ocaml-cstruct/issues"
-doc: "https://mirage.githbu.io/ocaml-cstruct/"
+doc: "https://mirage.github.io/ocaml-cstruct/"
+
 tags: [ "org:mirage" "org:ocamllabs" ]
 build: [
   ["dune" "subst"] {pinned}
diff --git a/ppx_cstruct.opam b/ppx_cstruct.opam
index 272e31b3..149a2c05 100644
--- a/ppx_cstruct.opam
+++ b/ppx_cstruct.opam
@@ -7,7 +7,7 @@ homepage:     "https://github.com/mirage/ocaml-cstruct"
 license:      "ISC"
 dev-repo: "git+https://github.com/mirage/ocaml-cstruct.git"
 bug-reports:  "https://github.com/mirage/ocaml-cstruct/issues"
-doc: "https://mirage.githbu.io/ocaml-cstruct/"
+doc: "https://mirage.github.io/ocaml-cstruct/"
 
 tags: [ "org:mirage" "org:ocamllabs" ]
 build: [