diff --git a/assets/keymaps/default-linux.json b/assets/keymaps/default-linux.json
index 44d7ad293f..11b8b5bd30 100644
--- a/assets/keymaps/default-linux.json
+++ b/assets/keymaps/default-linux.json
@@ -398,7 +398,7 @@
     "bindings": {
       "ctrl-shift-k": "editor::DeleteLine",
       "ctrl-shift-d": "editor::DuplicateLineDown",
-      "ctrl-j": "editor::JoinLines",
+      "ctrl-shift-j": "editor::JoinLines",
       "ctrl-alt-backspace": "editor::DeleteToPreviousSubwordStart",
       "ctrl-alt-h": "editor::DeleteToPreviousSubwordStart",
       "ctrl-alt-delete": "editor::DeleteToNextSubwordEnd",
diff --git a/assets/keymaps/macos/sublime_text.json b/assets/keymaps/macos/sublime_text.json
index d3df972028..40ac28a096 100644
--- a/assets/keymaps/macos/sublime_text.json
+++ b/assets/keymaps/macos/sublime_text.json
@@ -27,6 +27,7 @@
       "ctrl-,": "editor::GoToPrevHunk",
       "cmd-k cmd-u": "editor::ConvertToUpperCase",
       "cmd-k cmd-l": "editor::ConvertToLowerCase",
+      "cmd-shift-j": "editor::JoinLines",
       "shift-alt-m": "markdown::OpenPreviewToTheSide",
       "ctrl-backspace": "editor::DeleteToPreviousWordStart",
       "ctrl-delete": "editor::DeleteToNextWordEnd"