diff --git a/email2pdf2/email2pdf2.py b/email2pdf2/email2pdf2.py
index 25d6676..f4dd1c6 100755
--- a/email2pdf2/email2pdf2.py
+++ b/email2pdf2/email2pdf2.py
@@ -62,6 +62,7 @@
         r"Exit with code 1 due to network error: UnknownContentError",
         r"libpng warning: iCCP: known incorrect sRGB profile",
         r"libpng warning: iCCP: cHRM chunk does not match sRGB",
+        r"libpng warning: iCCP: profile 'ICC Profile': 1000000h: invalid rendering intent",
     ]
 )