diff --git a/src/kemal/param_parser.cr b/src/kemal/param_parser.cr
index e210873..d2893cb 100644
--- a/src/kemal/param_parser.cr
+++ b/src/kemal/param_parser.cr
@@ -43,8 +43,14 @@ module Kemal
     private def parse_body
       content_type = @request.content_type
       return unless content_type
-      @body = parse_part(@request.body) if content_type.starts_with?(URL_ENCODED_FORM)
-      parse_file_upload if content_type.starts_with?(MULTIPART_FORM)
+      if content_type.try(&.starts_with?(URL_ENCODED_FORM))
+        @body = parse_part(@request.body)
+        return
+      end
+      if content_type.try(&.starts_with?(MULTIPART_FORM))
+        parse_file_upload
+        return
+      end
     end
 
     private def parse_query
@@ -69,7 +75,6 @@ module Kemal
           @body[upload.name] = upload.body.gets_to_end
         end
       end
-      @body = parse_part(@request.body)
     end
 
     # Parses JSON request body if Content-Type is `application/json`.