1 files changed, 5 insertions, 0 deletions
diff --git a/src/libsyntax/ext/source_util.rs b/src/libsyntax/ext/source_util.rs
index a4c2d2dc030..d91659bafe4 100644
--- a/src/libsyntax/ext/source_util.rs
+++ b/src/libsyntax/ext/source_util.rs
@@ -184,6 +184,11 @@ pub fn expand_include_bytes(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
             return DummyResult::expr(sp);
         }
         Ok(..) => {
+            // Add this input file to the code map to make it available as
+            // dependency information, but don't enter it's contents
+            let filename = format!("{}", file.display());
+            cx.codemap().new_filemap(filename, "".to_string());
+
             base::MacEager::expr(cx.expr_lit(sp, ast::LitBinary(Rc::new(bytes))))
         }
     }