diff --git a/ulo/fix-rdf-file.py b/ulo/fix-rdf-file.py
index a6712460e9ac58b893fc56effd64c66a47a33715..d12a36ea3b9851938db51aba430247b74e609332 100755
--- a/ulo/fix-rdf-file.py
+++ b/ulo/fix-rdf-file.py
@@ -9,6 +9,8 @@ import sys
 def fix_quoted(s: str) -> str:
     payload = s.strip('"')
     fixed = parse.quote(payload)
+    fixed = fixed.replace('http%3A', 'http:')
+    fixed = fixed.replace('https%3A', 'https:')
     return '"%s"' % fixed