diff --git a/RELEASE_NOTES.rst b/RELEASE_NOTES.rst
index d0955a6d..aee7d0fc 100644
--- a/RELEASE_NOTES.rst
+++ b/RELEASE_NOTES.rst
@@ -3,6 +3,12 @@ RELEASE NOTES
 
 OCRmyPDF uses `semantic versioning <http://semver.org/>`_.
 
+v4.3.3:
+=======
+
+-  Fix additional problems with PDF/A creation on Ghostscript 9.20
+
+
 v4.3.2:
 =======
 
diff --git a/ocrmypdf/ghostscript.py b/ocrmypdf/ghostscript.py
index fb58c9e6..cbf22ee8 100644
--- a/ocrmypdf/ghostscript.py
+++ b/ocrmypdf/ghostscript.py
@@ -56,7 +56,7 @@ def generate_pdfa(pdf_pages, output_file, threads=1):
             "-sProcessColorModel=DeviceRGB",
             "-dJPEGQ=95",
             "-dPDFA=2",
-            "-sPDFACompatibilityPolicy=1",
+            "-dPDFACompatibilityPolicy=1",
             "-sOutputFile=" + gs_pdf.name,
         ]
         args_gs.extend(pdf_pages)