diff --git a/lua/rose-pine/init.lua b/lua/rose-pine/init.lua
index 748edce..8525305 100644
--- a/lua/rose-pine/init.lua
+++ b/lua/rose-pine/init.lua
@@ -91,15 +91,14 @@ function M.setup(opts)
 		},
 	}
 
-	local groups = opts.groups or {}
-	if type(groups.headings) == 'string' then
-		groups.headings = {
-			h1 = groups.headings,
-			h2 = groups.headings,
-			h3 = groups.headings,
-			h4 = groups.headings,
-			h5 = groups.headings,
-			h6 = groups.headings,
+	if opts.groups and type(opts.groups.headings) == 'string' then
+		opts.groups.headings = {
+			h1 = opts.groups.headings,
+			h2 = opts.groups.headings,
+			h3 = opts.groups.headings,
+			h4 = opts.groups.headings,
+			h5 = opts.groups.headings,
+			h6 = opts.groups.headings,
 		}
 	end
 
diff --git a/lua/rose-pine/theme.lua b/lua/rose-pine/theme.lua
index 1bd38a4..4a5429c 100644
--- a/lua/rose-pine/theme.lua
+++ b/lua/rose-pine/theme.lua
@@ -5,7 +5,7 @@ local M = {}
 
 function M.get(config)
 	local theme = {}
-	local groups = config.groups
+	local groups = config.groups or {}
 	local colors = palette[config.variant or 'main']
 	local styles = {
 		italic = (config.disable_italics and 'italic') or 'NONE',