diff --git a/data/core/keymap-macos.lua b/data/core/keymap-macos.lua
index 0809615f..f631ff9c 100644
--- a/data/core/keymap-macos.lua
+++ b/data/core/keymap-macos.lua
@@ -18,8 +18,8 @@ local function keymap_macos(keymap)
     ["alt+k"] = "root:switch-to-down",
 
     ["ctrl+w"] = "root:close",
-    ["cmd+tab"] = "root:switch-to-next-tab",
-    ["cmd+shift+tab"] = "root:switch-to-previous-tab",
+    ["ctrl+tab"] = "root:switch-to-next-tab",
+    ["ctrl+shift+tab"] = "root:switch-to-previous-tab",
     ["cmd+pageup"] = "root:move-tab-left",
     ["cmd+pagedown"] = "root:move-tab-right",
     ["alt+1"] = "root:switch-to-tab-1",
diff --git a/data/plugins/workspace.lua b/data/plugins/workspace.lua
index 77efd7c9..9c1e20c8 100644
--- a/data/plugins/workspace.lua
+++ b/data/plugins/workspace.lua
@@ -12,7 +12,7 @@ local function workspace_files_for(project_dir)
   if not info_wsdir then
     local ok, err = system.mkdir(workspace_dir)
     if not ok then
-      error("cannot create workspace directory: %s", err)
+      error("cannot create workspace directory: \"" .. err .. "\"")
     end
   end
   return coroutine.wrap(function()