diff --git a/gerrit-server/.settings/org.eclipse.core.resources.prefs b/gerrit-server/.settings/org.eclipse.core.resources.prefs
index 29abf99956..1daeba9ab1 100644
--- a/gerrit-server/.settings/org.eclipse.core.resources.prefs
+++ b/gerrit-server/.settings/org.eclipse.core.resources.prefs
@@ -3,4 +3,5 @@ encoding//src/main/java=UTF-8
 encoding//src/main/resources=UTF-8
 encoding//src/test/java=UTF-8
 encoding//src/test/resources=UTF-8
+encoding//target/generated-sources/prolog-java=UTF-8
 encoding/<project>=UTF-8