diff --git a/tools/ci-license-scan b/tools/ci-license-scan
index 29b92504a420664cafb541d1d904770e0f627ab2..4bbb691709029f606782b925b7d504560a1b1988 100755
--- a/tools/ci-license-scan
+++ b/tools/ci-license-scan
@@ -311,7 +311,9 @@ def configure_scanner():
         if debian_license and "debian/" not in copyright_overrides:
             copyright_overrides["debian/"] = {
                 "license": debian_license.synopsis,
-                "copyright": debian_copyright.strip(),
+                "copyright": re.sub(
+                    r"[^\x0A,\x20-\x7E]", r"", debian_copyright
+                ).strip(),
             }
     except Exception:
         pass