diff --git a/code/__DEFINES/movespeed_modification.dm b/code/__DEFINES/movespeed_modification.dm
index 832bd1bc55e..6b8ef7bd567 100644
--- a/code/__DEFINES/movespeed_modification.dm
+++ b/code/__DEFINES/movespeed_modification.dm
@@ -9,3 +9,4 @@
 #define MOVESPEED_ID_SANITY					"sanity_component"
 
 #define MOVESPEED_ID_MOB_GRAB_STATE			"mob_grab_state"
+#define MOVESPEED_ID_MOB_WALK_RUN			"mob_walk_run"
diff --git a/code/datums/outfit.dm b/code/datums/outfit.dm
index 518350c3be7..2843b558543 100755
--- a/code/datums/outfit.dm
+++ b/code/datums/outfit.dm
@@ -88,7 +88,7 @@
 	/// Internals box. Will be inserted at the start of backpack_contents
 	var/box
 
-	/** 
+	/**
 	  * Any implants the mob should start implanted with
 	  *
 	  * Format of this list is (typepath, typepath, typepath)
diff --git a/code/modules/movespeed/modifiers/mobs.dm b/code/modules/movespeed/modifiers/mobs.dm
index 2f88a1c33f1..cc92c38533e 100644
--- a/code/modules/movespeed/modifiers/mobs.dm
+++ b/code/modules/movespeed/modifiers/mobs.dm
@@ -49,6 +49,7 @@
 
 /datum/movespeed_modifier/config_walk_run
 	multiplicative_slowdown = 1
+	id = MOVESPEED_ID_MOB_WALK_RUN
 
 /datum/movespeed_modifier/config_walk_run/proc/sync()