diff --git a/src/lib/formats/fsmgr.h b/src/lib/formats/fsmgr.h
index 356bdd0ebaa..ece7e6c3fcd 100644
--- a/src/lib/formats/fsmgr.h
+++ b/src/lib/formats/fsmgr.h
@@ -21,6 +21,8 @@ public:
 		virtual void add_raw(const filesystem_manager_t *manager, const char *name, u32 key, const char *description) = 0;
 	};
 
+	virtual ~filesystem_manager_t() = default;
+
 	virtual void enumerate(floppy_enumerator &fe, uint32_t form_factor, const std::vector<uint32_t> &variants) const;
 
 	// Floppy image initialization