diff --git a/code/modules/reagents/Chemistry-Machinery.dm b/code/modules/reagents/Chemistry-Machinery.dm
index 0a2420c9180..d9ce4dbc3af 100644
--- a/code/modules/reagents/Chemistry-Machinery.dm
+++ b/code/modules/reagents/Chemistry-Machinery.dm
@@ -149,7 +149,7 @@
 	if (!ui)
 		// the ui does not exist, so we'll create a new() one
         // for a list of parameters and their descriptions see the code docs in \code\modules\nano\nanoui.dm
-		ui = new(user, src, ui_key, "chem_dispenser.tmpl", ui_title, 390, 660)
+		ui = new(user, src, ui_key, "chem_dispenser.tmpl", ui_title, 390, 655)
 		// when the ui is first opened this is the data it will use
 		ui.set_initial_data(data)
 		// open the new ui window