diff --git a/src/biber/clean.xml b/src/biber/clean.xml
index 5473f834c1a45510c14fe4dbed3ffa790629b2f5..c3bc59838186b10259039a6b9a9906ad763640aa 100644
--- a/src/biber/clean.xml
+++ b/src/biber/clean.xml
@@ -27,6 +27,7 @@
             </map>
             <map map_overwrite="1">
                 <map_step map_field_source="doi" map_match="http(s)?://dx.doi.org/" map_replace=""/>
+                <map_step map_field_source="doi" map_match="\\_" map_replace="_"/>
             </map>
             <map map_overwrite="0">
                 <map_step map_field_source="publisher"/>