diff --git a/Utils/keywords.txt b/Utils/keywords.txt
index efa2cfe60c3..2d66132a34f 100644
--- a/Utils/keywords.txt
+++ b/Utils/keywords.txt
@@ -64,6 +64,7 @@ Miracle|cost|
 Mountaincycling|cost|
 Mountainwalk|new|
 Morph|card, cost|
+Mutate|card, manaString|
 Myriad|new|
 Ninjutsu|cost|
 Outlast|cost|