diff --git a/src/builder.rs b/src/builder.rs
index f367c04..c9bd89e 100644
--- a/src/builder.rs
+++ b/src/builder.rs
@@ -161,7 +161,7 @@ impl<D: Clone> SymbolBuilder<KeyAndCertBundle<D>> for DefaultBuilder {
     target: &<KeyAndCertBundle<D> as Resource>::Artifact,
     (cert_chain, key): <Self::Prerequisites as ToArtifact>::Artifact,
   ) -> Self::Symbol {
-    ConcatSymbol::new([cert_chain.0, key.0], target.0.clone())
+    ConcatSymbol::new([key.0, cert_chain.0], target.0.clone())
   }
 }