diff --git a/lib/uri/generic.rb b/lib/uri/generic.rb
index f3540a2..f32a5fd 100644
--- a/lib/uri/generic.rb
+++ b/lib/uri/generic.rb
@@ -205,7 +205,7 @@ def initialize(scheme,
       end
       if registry
         raise InvalidURIError,
-          "the scheme #{@scheme} does not accept registry part: #{registry} (or bad hostname?)"
+          "the scheme #{@scheme} does not accept registry part (or bad hostname?)"
       end
 
       @scheme&.freeze
diff --git a/lib/uri/rfc3986_parser.rb b/lib/uri/rfc3986_parser.rb
index 092a1ac..0dac66b 100644
--- a/lib/uri/rfc3986_parser.rb
+++ b/lib/uri/rfc3986_parser.rb
@@ -78,10 +78,10 @@ def split(uri) #:nodoc:
       begin
         uri = uri.to_str
       rescue NoMethodError
-        raise InvalidURIError, "bad URI(is not URI?): #{uri.inspect}"
+        raise InvalidURIError, "bad URI(is not URI?)"
       end
       uri.ascii_only? or
-        raise InvalidURIError, "URI must be ascii only #{uri.dump}"
+        raise InvalidURIError, "URI must be ascii only"
       if m = RFC3986_URI.match(uri)
         query = m["query"]
         scheme = m["scheme"]
@@ -127,7 +127,7 @@ def split(uri) #:nodoc:
           m["fragment"]
         ]
       else
-        raise InvalidURIError, "bad URI(is not URI?): #{uri.inspect}"
+        raise InvalidURIError, "bad URI(is not URI?)"
       end
     end