diff --git a/MANIFEST.in b/MANIFEST.in
new file mode 100644
index 00000000..781a8c14
--- /dev/null
+++ b/MANIFEST.in
@@ -0,0 +1,3 @@
+# Exclude the symlink included to allow
+# importlib.resources to work for editable installs
+exclude src/*/resources
diff --git a/src/asdf_standard/integration.py b/src/asdf_standard/integration.py
index 8981fe56..3b90b06f 100644
--- a/src/asdf_standard/integration.py
+++ b/src/asdf_standard/integration.py
@@ -1,5 +1,4 @@
 import sys
-from pathlib import Path
 
 if sys.version_info < (3, 9):
     import importlib_resources
@@ -10,13 +9,7 @@
 
 
 def get_resource_mappings():
-    resources_root = importlib_resources.files(asdf_standard) / "resources"
-    if not resources_root.is_dir():
-        # In an editable install, the resources directory will exist off the
-        # repository root:
-        resources_root = Path(__file__).absolute().parent.parent.parent / "resources"
-        if not resources_root.is_dir():
-            raise RuntimeError("Missing resources directory")
+    resources_root = importlib_resources.files("asdf_standard") / "resources"
 
     return [
         asdf_standard.DirectoryResourceMapping(
diff --git a/src/asdf_standard/resources b/src/asdf_standard/resources
new file mode 120000
index 00000000..bc764151
--- /dev/null
+++ b/src/asdf_standard/resources
@@ -0,0 +1 @@
+../../resources
\ No newline at end of file