diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index c3cd81d3a95f..a522cbf72fa9 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -45,7 +45,6 @@ use rustc::middle::def;
 use rustc::middle::subst::{self, ParamSpace, VecPerParamSpace};
 use rustc::middle::ty;
 use rustc::middle::stability;
-use rustc::session::config;
 
 use std::rc::Rc;
 use std::u32;
@@ -127,6 +126,8 @@ pub struct Crate {
 
 impl<'a, 'tcx> Clean<Crate> for visit_ast::RustdocVisitor<'a, 'tcx> {
     fn clean(&self, cx: &DocContext) -> Crate {
+        use rustc::session::config::Input;
+
         let mut externs = Vec::new();
         cx.sess().cstore.iter_crate_data(|n, meta| {
             externs.push((n, meta.clean(cx)));
@@ -134,8 +135,8 @@ impl<'a, 'tcx> Clean<Crate> for visit_ast::RustdocVisitor<'a, 'tcx> {
         externs.sort_by(|&(a, _), &(b, _)| a.cmp(&b));
 
         // Figure out the name of this crate
-        let input = config::Input::File(cx.src.clone());
-        let name = link::find_crate_name(None, self.attrs.as_slice(), &input);
+        let input = &cx.input;
+        let name = link::find_crate_name(None, self.attrs.as_slice(), input);
 
         // Clean the crate, translating the entire libsyntax AST to one that is
         // understood by rustdoc.
@@ -188,9 +189,14 @@ impl<'a, 'tcx> Clean<Crate> for visit_ast::RustdocVisitor<'a, 'tcx> {
             m.items.extend(tmp.into_iter());
         }
 
+        let src = match cx.input {
+            Input::File(ref path) => path.clone(),
+            Input::Str(_) => FsPath::new("") // FIXME: this is wrong
+        };
+
         Crate {
             name: name.to_string(),
-            src: cx.src.clone(),
+            src: src,
             module: Some(module),
             externs: externs,
             primitives: primitives,
diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 5bef0195874b..437ff6664978 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -11,7 +11,7 @@ pub use self::MaybeTyped::*;
 
 use rustc_driver::driver;
 use rustc::session::{self, config};
-use rustc::session::config::UnstableFeatures;
+use rustc::session::config::{Input, UnstableFeatures};
 use rustc::session::search_paths::SearchPaths;
 use rustc::middle::{privacy, ty};
 use rustc::lint;
@@ -39,7 +39,7 @@ pub type ExternalPaths = RefCell<Option<HashMap<ast::DefId,
 pub struct DocContext<'tcx> {
     pub krate: &'tcx ast::Crate,
     pub maybe_typed: MaybeTyped<'tcx>,
-    pub src: Path,
+    pub input: Input,
     pub external_paths: ExternalPaths,
     pub external_traits: RefCell<Option<HashMap<ast::DefId, clean::Trait>>>,
     pub external_typarams: RefCell<Option<HashMap<ast::DefId, String>>>,
@@ -80,12 +80,15 @@ pub struct CrateAnalysis {
 pub type Externs = HashMap<String, Vec<String>>;
 
 pub fn run_core(search_paths: SearchPaths, cfgs: Vec<String>, externs: Externs,
-                cpath: &Path, triple: Option<String>)
+                input: Input, triple: Option<String>)
                 -> (clean::Crate, CrateAnalysis) {
 
     // Parse, resolve, and typecheck the given crate.
 
-    let input = config::Input::File(cpath.clone());
+    let cpath = match input {
+        Input::File(ref p) => Some(p.clone()),
+        _ => None
+    };
 
     let warning_lint = lint::builtin::WARNINGS.name_lower();
 
@@ -107,8 +110,7 @@ pub fn run_core(search_paths: SearchPaths, cfgs: Vec<String>, externs: Externs,
     let span_diagnostic_handler =
         diagnostic::mk_span_handler(diagnostic_handler, codemap);
 
-    let sess = session::build_session_(sessopts,
-                                       Some(cpath.clone()),
+    let sess = session::build_session_(sessopts, cpath,
                                        span_diagnostic_handler);
 
     let cfg = config::build_configuration(&sess);
@@ -136,7 +138,7 @@ pub fn run_core(search_paths: SearchPaths, cfgs: Vec<String>, externs: Externs,
     let ctxt = DocContext {
         krate: ty_cx.map.krate(),
         maybe_typed: Typed(ty_cx),
-        src: cpath.clone(),
+        input: input,
         external_traits: RefCell::new(Some(HashMap::new())),
         external_typarams: RefCell::new(Some(HashMap::new())),
         external_paths: RefCell::new(Some(HashMap::new())),
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index e6eed4806338..11135ed436ea 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -350,8 +350,10 @@ fn rust_input(cratefile: &str, externs: core::Externs, matches: &getopts::Matche
     info!("starting to run rustc");
 
     let (mut krate, analysis) = std::thread::Thread::scoped(move |:| {
+        use rustc::session::config::Input;
+
         let cr = cr;
-        core::run_core(paths, cfgs, externs, &cr, triple)
+        core::run_core(paths, cfgs, externs, Input::File(cr), triple)
     }).join().map_err(|_| "rustc failed").unwrap();
     info!("finished with rustc");
     let mut analysis = Some(analysis);
diff --git a/src/librustdoc/test.rs b/src/librustdoc/test.rs
index 9b8d220acc39..7f1bd9e6d596 100644
--- a/src/librustdoc/test.rs
+++ b/src/librustdoc/test.rs
@@ -79,7 +79,7 @@ pub fn run(input: &str,
     let ctx = core::DocContext {
         krate: &krate,
         maybe_typed: core::NotTyped(sess),
-        src: input_path,
+        input: input,
         external_paths: RefCell::new(Some(HashMap::new())),
         external_traits: RefCell::new(None),
         external_typarams: RefCell::new(None),