diff --git a/src/app/meta.rs b/src/app/meta.rs
index d3ac7db3..973a6a3d 100644
--- a/src/app/meta.rs
+++ b/src/app/meta.rs
@@ -1,4 +1,5 @@
 #[doc(hidden)]
+#[allow(missing_debug_implementations)]
 pub struct AppMeta<'b> {
     pub name: String,
     pub bin_name: Option<String>,
diff --git a/src/app/parser.rs b/src/app/parser.rs
index bf04c245..aa3d7404 100644
--- a/src/app/parser.rs
+++ b/src/app/parser.rs
@@ -24,6 +24,7 @@ use osstringext::OsStrExt2;
 use app::meta::AppMeta;
 use args::MatchedArg;
 
+#[allow(missing_debug_implementations)]
 #[doc(hidden)]
 pub struct Parser<'a, 'b> where 'a: 'b {
     required: Vec<&'b str>,
diff --git a/src/args/arg_matcher.rs b/src/args/arg_matcher.rs
index 6f1ae11f..1fba132b 100644
--- a/src/args/arg_matcher.rs
+++ b/src/args/arg_matcher.rs
@@ -9,6 +9,7 @@ use args::settings::ArgSettings;
 use args::AnyArg;
 
 #[doc(hidden)]
+#[allow(missing_debug_implementations)]
 pub struct ArgMatcher<'a>(pub ArgMatches<'a>);
 
 impl<'a> ArgMatcher<'a> {
diff --git a/src/args/arg_matches.rs b/src/args/arg_matches.rs
index a574dcd7..0e11f887 100644
--- a/src/args/arg_matches.rs
+++ b/src/args/arg_matches.rs
@@ -496,6 +496,7 @@ impl<'a> ArgMatches<'a> {
 // license: MIT - Copyright (c) 2015 The Rust Project Developers
 
 #[derive(Clone)]
+#[allow(missing_debug_implementations)]
 pub struct Values<'a> {
     iter: Map<vec_map::Values<'a, OsString>, fn(&'a OsString) -> &'a str>
 }
@@ -559,6 +560,7 @@ impl<'a, V> DoubleEndedIterator for Iter<'a, V> {
 }
 
 #[derive(Clone)]
+#[allow(missing_debug_implementations)]
 pub struct OsValues<'a> {
     iter: Map<vec_map::Values<'a, OsString>, fn(&'a OsString) -> &'a OsStr>
 }