diff --git a/src/cargo/ops/cargo_rustc/context.rs b/src/cargo/ops/cargo_rustc/context.rs
index 922da9ccdf8..fe0a9424141 100644
--- a/src/cargo/ops/cargo_rustc/context.rs
+++ b/src/cargo/ops/cargo_rustc/context.rs
@@ -454,7 +454,7 @@ impl<'a, 'cfg> Context<'a, 'cfg> {
         let deps = self.resolve.deps(id);
         let mut ret = try!(deps.filter(|dep| {
             unit.pkg.dependencies().iter().filter(|d| {
-                d.name() == dep.name()
+                d.name() == dep.name() && d.version_req().matches(dep.version())
             }).any(|d| {
                 // If this target is a build command, then we only want build
                 // dependencies, otherwise we want everything *other than* build
diff --git a/tests/cfg.rs b/tests/cfg.rs
index e8de0101beb..6712af6d869 100644
--- a/tests/cfg.rs
+++ b/tests/cfg.rs
@@ -228,6 +228,38 @@ fn works_through_the_registry() {
 "));
 }
 
+#[test]
+fn ignore_version_from_other_platform() {
+    let this_family = if cfg!(unix) {"unix"} else {"windows"};
+    let other_family = if cfg!(unix) {"windows"} else {"unix"};
+    Package::new("foo", "0.1.0").publish();
+    Package::new("foo", "0.2.0").publish();
+
+    let p = project("a")
+        .file("Cargo.toml", &format!(r#"
+            [package]
+            name = "a"
+            version = "0.0.1"
+            authors = []
+
+            [target.'cfg({})'.dependencies]
+            foo = "0.1.0"
+
+            [target.'cfg({})'.dependencies]
+            foo = "0.2.0"
+        "#, this_family, other_family))
+        .file("src/lib.rs", "extern crate foo;");
+
+    assert_that(p.cargo_process("build"),
+                execs().with_status(0).with_stderr("\
+[UPDATING] registry [..]
+[DOWNLOADING] [..]
+[COMPILING] foo v0.1.0
+[COMPILING] a v0.0.1 ([..])
+[FINISHED] debug [unoptimized + debuginfo] target(s) in [..]
+"));
+}
+
 #[test]
 fn bad_target_spec() {
     let p = project("a")