diff --git a/include/mk64.h b/include/mk64.h
index 2e7e1a207..fabd57254 100644
--- a/include/mk64.h
+++ b/include/mk64.h
@@ -103,6 +103,7 @@ enum SURFACE_TYPE {
     /* 0x0F */ CAVE,         // DK Jungle cave
     /* 0x10 */ ROPE_BRIDGE,  // Bowser's Castle bridge 2, DK Jungle bridge
     /* 0x11 */ WOOD_BRIDGE,  // Frappe Snowland bridge, Bowser's Castle bridge 1,3, Yoshi Valley bridge 2
+    /* 0xFB */ WATER_SURFACE = 0xFB, // Water effect and Lakitu picks up the player
     /* 0xFC */ BOOST_RAMP_WOOD = 0xFC, // DK Jungle
     /* 0xFD */ OUT_OF_BOUNDS,          // DK Jungle river island oob / out of bounds
     /* 0xFE */ BOOST_RAMP_ASPHALT,     // Royal Raceway