diff --git a/vlib/veb/context.v b/vlib/veb/context.v
index 768cbd8471ff49..a14aea5c6485a1 100644
--- a/vlib/veb/context.v
+++ b/vlib/veb/context.v
@@ -99,7 +99,7 @@ pub fn (mut ctx Context) send_response_to_client(mimetype string, response strin
 
 	// set Content-Type and Content-Length headers
 	mut custom_mimetype := if ctx.content_type.len == 0 { mimetype } else { ctx.content_type }
-	if custom_mimetype.len != '' {
+	if custom_mimetype != '' {
 		ctx.res.header.set(.content_type, custom_mimetype)
 	}
 	if ctx.res.body != '' {