diff --git a/master_changes.md b/master_changes.md
index fe42c861507..e68d2f848b7 100644
--- a/master_changes.md
+++ b/master_changes.md
@@ -46,6 +46,7 @@ users)
 
 ## Pin
   * [NEW] Make it so pin list display the current revision of a pinned repository in a new column [#6274 @desumn - fix #5533]
+  * [BUG] Stop double pin of packages located in ./opam/opam [#6343 @kit-ty-kate - fix #6342]
 
 ## List
 
@@ -154,6 +155,7 @@ users)
   * Add switch removal test: failure on removal linked switch [#6276 @btjorge]
   * Extend the tests on opam admin to include packages using builtin global variables [#6331 @kit-ty-kate]
   * Extend the tests on opam admin check by including all the arguments [#6331 @kit-ty-kate @rjbou]
+  * Add double pinning test in case of opam/opam opam file [#6343 @rjbou]
 
 ### Engine
 
diff --git a/src/state/opamPinned.ml b/src/state/opamPinned.ml
index fac5d8ecd83..c92f3e5aa31 100644
--- a/src/state/opamPinned.ml
+++ b/src/state/opamPinned.ml
@@ -193,9 +193,8 @@ let files_in_source ?locked ?(recurse=false) ?subpath d =
       in
       List.fold_left
         (fun acc d ->
-           if OpamFilename.(basename_dir d = Base.of_string "opam") ||
-              OpamStd.String.ends_with ~suffix:".opam"
-                (OpamFilename.Dir.to_string d)
+           if OpamStd.String.ends_with ~suffix:".opam"
+               (OpamFilename.Dir.to_string d)
            then
              match OpamFilename.opt_file OpamFilename.Op.(d//"opam") with
              | None -> acc
diff --git a/tests/reftests/lock.test b/tests/reftests/lock.test
index ea2910f2432..37243ebdd5b 100644
--- a/tests/reftests/lock.test
+++ b/tests/reftests/lock.test
@@ -386,13 +386,9 @@ Done.
 opam-version: "2.0"
 name: "silver"
 depends: "foo"
-### # ERROR double silver
 ### opam pin -n old
-This will pin the following packages: silver, silver. Continue? [Y/n] y
 Package silver does not exist, create as a NEW package? [Y/n] y
 silver is now pinned to file://${BASEDIR}/old (version dev)
-[NOTE] Package silver is already pinned to file://${BASEDIR}/old (version dev).
-silver is now pinned to file://${BASEDIR}/old (version dev)
 ### opam lock silver
 Generated lock files for:
   - silver.dev: ${BASEDIR}/silver.opam.locked
diff --git a/tests/reftests/pin.test b/tests/reftests/pin.test
index 0f70077adb5..5a6b83269ab 100644
--- a/tests/reftests/pin.test
+++ b/tests/reftests/pin.test
@@ -937,3 +937,10 @@ vcs-local is now pinned to git+file://${BASEDIR}/vcs-local#master (version dev)
 ### opam show vcs-local --field build:,url.src:
 build:   "false"
 url.src: "git+file://${BASEDIR}/vcs-local#master"
+### :C:b: double pinning when the opam file is opam/opam
+### <pin:double/opam/opam>
+opam-version: "2.0"
+name: "double"
+### opam pin -n double
+Package double does not exist, create as a NEW package? [Y/n] y
+double is now pinned to file://${BASEDIR}/double (version dev)