diff --git a/src/pg/sql/19_contour.sql b/src/pg/sql/19_contour.sql
index 5118972..8c614b6 100644
--- a/src/pg/sql/19_contour.sql
+++ b/src/pg/sql/19_contour.sql
@@ -69,7 +69,7 @@ BEGIN
             geom,
             CASE
                 WHEN intmethod=1 THEN cdb_crankshaft._interp_in_tin(geomin, colin, tin, ST_Centroid(geom))
-                ELSE db_crankshaft.CDB_SpatialInterpolation(geomin, colin, ST_Centroid(geom), intmethod)
+                ELSE cdb_crankshaft.CDB_SpatialInterpolation(geomin, colin, ST_Centroid(geom), intmethod)
             END as val
         FROM grid
     ),
diff --git a/src/pg/test/sql/19_contour_test.sql b/src/pg/test/sql/19_contour_test.sql
index fa32609..92438cc 100644
--- a/src/pg/test/sql/19_contour_test.sql
+++ b/src/pg/test/sql/19_contour_test.sql
@@ -11,4 +11,4 @@ SELECT
     foo.*
 FROM
     a,
-    CDB_contour(a.g, a.vals, 500, 0.0, 1,3,5) foo;
+    cdb_crankshaft.CDB_contour(a.g, a.vals, 500, 0.0, 1,3,5) foo;