diff --git a/varargin2struct.m b/varargin2struct.m
index 52340ba..d19f0a9 100644
--- a/varargin2struct.m
+++ b/varargin2struct.m
@@ -31,7 +31,7 @@
 while (i <= len)
     if (isstruct(varargin{i}))
         opt = mergestruct(opt, varargin{i});
-    elseif (ischar(varargin{i}) && i < len)
+    elseif ((ischar(varargin{i}) || isa(varargin{i}, 'string')) && i < len)
         opt.(lower(varargin{i})) = varargin{i + 1};
         i = i + 1;
     else