diff --git a/code/modules/power/smes_construction.dm b/code/modules/power/smes_construction.dm
index dae8941e8c1..b346e59d946 100644
--- a/code/modules/power/smes_construction.dm
+++ b/code/modules/power/smes_construction.dm
@@ -139,6 +139,9 @@
 	if(panel_open)
 		wires.Interact(usr)
 
+/obj/machinery/power/smes/buildable/RefreshParts()
+	recalc_coils()
+
 // Proc: recalc_coils()
 // Parameters: None
 // Description: Updates properties (IO, capacity, etc.) of this SMES by checking internal components.