diff --git a/query-translator/src/lib.rs b/query-translator/src/lib.rs
index b122c670..b91cc258 100644
--- a/query-translator/src/lib.rs
+++ b/query-translator/src/lib.rs
@@ -9,6 +9,7 @@
 // specific language governing permissions and limitations under the License.
 
 extern crate failure;
+
 extern crate mentat_core;
 extern crate mentat_query;
 extern crate mentat_query_algebrizer;
@@ -16,8 +17,6 @@ extern crate mentat_query_projector;
 extern crate mentat_query_sql;
 extern crate mentat_sql;
 
-use failure::Error;
-
 mod translate;
 
 pub use mentat_query_sql::{
@@ -30,4 +29,6 @@ pub use translate::{
     query_to_select,
 };
 
-type Result<T> = std::result::Result<T, Error>;
+// query-translator could be folded into query-projector; for now, just type alias the errors.
+pub type TranslatorError = mentat_query_projector::ProjectorError;
+pub type Result<T> = std::result::Result<T, TranslatorError>;
diff --git a/query-translator/src/translate.rs b/query-translator/src/translate.rs
index ac35548d..687e3b03 100644
--- a/query-translator/src/translate.rs
+++ b/query-translator/src/translate.rs
@@ -521,5 +521,5 @@ pub fn query_to_select(schema: &Schema, query: AlgebraicQuery) -> Result<Project
                 projector: datalog_projector,
             }
         },
-    }).map_err(|e| e.into())
+    })
 }