diff --git a/tools/merge_libs b/tools/merge_libs
index ca29b708613765e0b9dd6d0b974d2c7c77a5c8d4..4a5d4804d5b88be7a7cc7dc5b622fe17935227db 100755
--- a/tools/merge_libs
+++ b/tools/merge_libs
@@ -167,7 +167,7 @@ class DocLib:
     def commit(self):
         with open(self.path, 'w') as f:
             f.write('EESchema-DOCLIB  Version 2.0\n')
-            f.write('#encoding utf-8\n')
+            f.write('#\n')
             for c in sorted(self.component):
                 f.write(''.join(self.component[c]))
                 f.write('#\n')