diff --git a/src/include/catalog/dependency.h b/src/include/catalog/dependency.h
index 6d6c23d8462..c8d07f48dea 100644
--- a/src/include/catalog/dependency.h
+++ b/src/include/catalog/dependency.h
@@ -223,9 +223,9 @@ extern long changeDependencyFor(Oid classId, Oid objectId,
 								Oid refClassId, Oid oldRefObjectId,
 								Oid newRefObjectId);
 
-long changeDependenciesOf(Oid classId, Oid oldObjectId,
+extern long changeDependenciesOf(Oid classId, Oid oldObjectId,
 								 Oid newObjectId);
-long changeDependenciesOn(Oid refClassId, Oid oldRefObjectId,
+extern long changeDependenciesOn(Oid refClassId, Oid oldRefObjectId,
 								 Oid newRefObjectId);
 
 extern Oid	getExtensionOfObject(Oid classId, Oid objectId);