diff --git a/libretroshare/src/chat/rschatitems.h b/libretroshare/src/chat/rschatitems.h
index ddc0a2b86..ab511aab8 100644
--- a/libretroshare/src/chat/rschatitems.h
+++ b/libretroshare/src/chat/rschatitems.h
@@ -93,7 +93,7 @@ class RsChatItem: public RsItem
 		}
 
 		virtual ~RsChatItem() {}
-        virtual std::ostream& print(std::ostream &out, uint16_t indent = 0) { return out; }	// derived from RsItem, but should be removed
+		virtual std::ostream& print(std::ostream &out, uint16_t /*indent*/ = 0) { return out; }	// derived from RsItem, but should be removed
 
         virtual void clear() {}
 };