diff --git a/build.rs b/build.rs
index 7012898..ea3c7e2 100644
--- a/build.rs
+++ b/build.rs
@@ -1,4 +1,4 @@
-#[cfg(skeptic)]
+#[cfg(feature = "skeptic")]
 fn main() {
     extern crate skeptic;
 
@@ -8,5 +8,5 @@ fn main() {
                                   "doc/tutorial_3.md" ]);
 }
 
-#[cfg(not(skeptic))]
+#[cfg(not(feature = "skeptic"))]
 fn main() {}
diff --git a/tests/skeptic.rs b/tests/skeptic.rs
index ff46c9c..08d989f 100644
--- a/tests/skeptic.rs
+++ b/tests/skeptic.rs
@@ -1 +1,2 @@
+#[cfg(feature = "skeptic")]
 include!(concat!(env!("OUT_DIR"), "/skeptic-tests.rs"));