diff --git a/src/Ractive-decorators-sortable.js b/src/Ractive-decorators-sortable.js
index d0e54c4..26f835f 100644
--- a/src/Ractive-decorators-sortable.js
+++ b/src/Ractive-decorators-sortable.js
@@ -142,7 +142,7 @@
 			throw new Error( errorMessage );
 		}
 
-		event.dataTransfer.setData( 'foo', true ); // enables dragging in FF. go figure
+		event.dataTransfer.setData( 'text', 'foobar' ); // enables dragging in FF. go figure
 
 		// keep a reference to the Ractive instance that 'owns' this data and this element
 		ractive = storage.root;
@@ -199,4 +199,4 @@
 
 	Ractive.decorators.sortable = sortable;
 
-}));
\ No newline at end of file
+}));