diff --git a/packages/xod-project/src/patchPathUtils.js b/packages/xod-project/src/patchPathUtils.js
index 22021a11..d984bf5b 100644
--- a/packages/xod-project/src/patchPathUtils.js
+++ b/packages/xod-project/src/patchPathUtils.js
@@ -72,6 +72,15 @@ export const getLibraryName = R.ifElse(
   R.always('@')
 );
 
+/**
+ * Converts `xod/core/something` into `@/something`,
+ * `@/another-one` will be unchanged.
+ */
+export const convertToLocalPath = R.compose(
+  getLocalPath,
+  getBaseName
+);
+
 //
 // Utils for terminal patches
 //
diff --git a/packages/xod-project/src/project.js b/packages/xod-project/src/project.js
index c23828e6..37ef2bab 100644
--- a/packages/xod-project/src/project.js
+++ b/packages/xod-project/src/project.js
@@ -1,6 +1,6 @@
 import R from 'ramda';
 import { Either, Maybe } from 'ramda-fantasy';
-import { explodeMaybe, notEmpty } from 'xod-func-tools';
+import { explodeMaybe, notEmpty, isAmong } from 'xod-func-tools';
 import { BUILT_IN_PATCH_PATHS } from './builtInPatches';
 
 import * as CONST from './constants';
@@ -197,7 +197,14 @@ export const listPatches = def(
  */
 export const listPatchesWithoutBuiltIns = def(
   'listPatches :: Project -> [Patch]',
-  R.compose(R.values, R.prop('patches'))
+  R.compose(
+    R.reject(R.compose(
+      isAmong(BUILT_IN_PATCH_PATHS),
+      Patch.getPatchPath
+    )),
+    R.values,
+    R.prop('patches')
+  )
 );
 
 /**