diff --git a/code/modules/research/techweb/nodes/engi_nodes.dm b/code/modules/research/techweb/nodes/engi_nodes.dm
index b3ccb425d88..ce8fbfd25d3 100644
--- a/code/modules/research/techweb/nodes/engi_nodes.dm
+++ b/code/modules/research/techweb/nodes/engi_nodes.dm
@@ -59,7 +59,7 @@
 		"hyper_cell",
 	)
 	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = TECHWEB_TIER_3_POINTS)
-	required_experiments = list(/datum/experiment/scanning/points/machinery_tiered_scan/tier2_any)
+	discount_experiments = list(/datum/experiment/scanning/points/machinery_tiered_scan/tier2_any = TECHWEB_TIER_3_POINTS)
 	announce_channels = list(RADIO_CHANNEL_ENGINEERING)
 
 
diff --git a/code/modules/research/techweb/nodes/surgery_nodes.dm b/code/modules/research/techweb/nodes/surgery_nodes.dm
index 7af1dacf1df..bf6f104cf1e 100644
--- a/code/modules/research/techweb/nodes/surgery_nodes.dm
+++ b/code/modules/research/techweb/nodes/surgery_nodes.dm
@@ -37,7 +37,7 @@
 		"surgery_wing_reconstruction",
 	)
 	research_costs = list(TECHWEB_POINT_TYPE_GENERIC = TECHWEB_TIER_2_POINTS)
-	required_experiments = list(/datum/experiment/autopsy/human)
+	discount_experiments = list(/datum/experiment/autopsy/human = TECHWEB_TIER_2_POINTS)
 	announce_channels = list(RADIO_CHANNEL_MEDICAL)
 
 /datum/techweb_node/surgery_exp