diff --git a/src/librustdoc/config.rs b/src/librustdoc/config.rs
index f2682e00430d..af5c95ea5899 100644
--- a/src/librustdoc/config.rs
+++ b/src/librustdoc/config.rs
@@ -254,10 +254,11 @@ impl Options {
                                       (instead was `{}`)", arg));
             }
         };
+        // FIXME: deduplicate this code from the identical code in librustc/session/config.rs
         let error_format = match matches.opt_str("error-format").as_ref().map(|s| &s[..]) {
             Some("human") => ErrorOutputType::HumanReadable(color),
-            Some("json") => ErrorOutputType::Json(false),
-            Some("pretty-json") => ErrorOutputType::Json(true),
+            Some("json") => ErrorOutputType::Json { pretty: false, colorful_rendered: false },
+            Some("pretty-json") => ErrorOutputType::Json { pretty: true, colorful_rendered: false },
             Some("short") => ErrorOutputType::Short(color),
             None => ErrorOutputType::HumanReadable(color),
             Some(arg) => {
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 3cf6b32b07c4..18bb5eef538b 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -307,7 +307,7 @@ pub fn new_handler(error_format: ErrorOutputType,
                 sessopts.debugging_opts.teach,
             ).ui_testing(ui_testing)
         ),
-        ErrorOutputType::Json(pretty) => {
+        ErrorOutputType::Json { pretty, colorful_rendered } => {
             let source_map = source_map.unwrap_or_else(
                 || Lrc::new(source_map::SourceMap::new(sessopts.file_path_mapping())));
             Box::new(
@@ -315,6 +315,7 @@ pub fn new_handler(error_format: ErrorOutputType,
                     None,
                     source_map,
                     pretty,
+                    colorful_rendered,
                 ).ui_testing(ui_testing)
             )
         },
diff --git a/src/librustdoc/test.rs b/src/librustdoc/test.rs
index 0bbc7c5c4b22..abf74158c938 100644
--- a/src/librustdoc/test.rs
+++ b/src/librustdoc/test.rs
@@ -381,7 +381,7 @@ pub fn make_test(s: &str,
         // Any errors in parsing should also appear when the doctest is compiled for real, so just
         // send all the errors that libsyntax emits directly into a `Sink` instead of stderr.
         let cm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
-        let emitter = EmitterWriter::new(box io::sink(), None, false, false);
+        let emitter = EmitterWriter::new(box io::sink(), None, false, false, false);
         let handler = Handler::with_emitter(false, None, box emitter);
         let sess = ParseSess::with_span_handler(handler, cm);