diff --git a/code/modules/research/stock_parts.dm b/code/modules/research/stock_parts.dm
index 9d79c5f1ced..a1738889738 100644
--- a/code/modules/research/stock_parts.dm
+++ b/code/modules/research/stock_parts.dm
@@ -183,7 +183,7 @@
 	name = "pico-manipulator"
 	desc = "A tiny little manipulator used in the construction of certain devices."
 	icon_state = "pico_mani"
-	origin_tech = "materials=4;programming=4,engineering=4"
+	origin_tech = "materials=4;programming=4;engineering=4"
 	rating = 3
 	materials = list(MAT_METAL=30)