diff --git a/contrib/generate-version-script.py b/contrib/generate-version-script.py
index bd3bf3b0a..408199f3f 100755
--- a/contrib/generate-version-script.py
+++ b/contrib/generate-version-script.py
@@ -38,7 +38,8 @@ class LdVersionScript:
         if version not in self.releases:
             self.releases[version] = []
         release = self.releases[version]
-        release.append(identifier)
+        if identifier not in release:
+            release.append(identifier)
         return version
 
     def _add_cls(self, cls):
diff --git a/libfwupdplugin/fwupdplugin.map b/libfwupdplugin/fwupdplugin.map
index aa54114c1..f5c74209f 100644
--- a/libfwupdplugin/fwupdplugin.map
+++ b/libfwupdplugin/fwupdplugin.map
@@ -159,7 +159,6 @@ LIBFWUPDPLUGIN_1.0.0 {
 
 LIBFWUPDPLUGIN_1.0.1 {
   global:
-    fu_chunk_array_to_string;
     fu_chunk_array_to_string;
     fu_plugin_get_quirks;
     fu_plugin_lookup_quirk_by_id;