diff --git a/code/modules/surgery/organs/subtypes/vulpkanin.dm b/code/modules/surgery/organs/subtypes/vulpkanin.dm
index 979b5180bbb..d68155c1113 100644
--- a/code/modules/surgery/organs/subtypes/vulpkanin.dm
+++ b/code/modules/surgery/organs/subtypes/vulpkanin.dm
@@ -6,7 +6,7 @@
 /obj/item/organ/internal/eyes/vulpkanin
 	name = "vulpkanin eyeballs"
 	species = "Vulpkanin"
-	colourmatrix = MATRIX_VULP_CBLIND
+	colourblind_matrix = MATRIX_VULP_CBLIND
 	dark_view = 8
 
 /obj/item/organ/internal/eyes/vulpkanin/wolpin //Being the lesser form of Vulpkanin, Wolpins have an utterly incurable version of their colourblindness.