diff --git a/code/__DEFINES/traits.dm b/code/__DEFINES/traits.dm
index 739867c9c7a..4850b88936c 100644
--- a/code/__DEFINES/traits.dm
+++ b/code/__DEFINES/traits.dm
@@ -249,3 +249,4 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 #define ANTI_DROP_IMPLANT_TRAIT "anti-drop-implant"
 #define SLEEPING_CARP_TRAIT "sleeping_carp"
 #define MADE_UNCLONEABLE "made-uncloneable"
+#define TIMESTOP_TRAIT "timestop"
diff --git a/code/modules/fields/timestop.dm b/code/modules/fields/timestop.dm
index 7c97984e4d6..f3667c304ca 100644
--- a/code/modules/fields/timestop.dm
+++ b/code/modules/fields/timestop.dm
@@ -180,6 +180,7 @@
 /datum/proximity_monitor/advanced/timestop/proc/freeze_mob(mob/living/L)
 	frozen_mobs += L
 	L.Stun(20, 1, 1)
+	ADD_TRAIT(L, TRAIT_MUTE, TIMESTOP_TRAIT)
 	walk(L, 0) //stops them mid pathing even if they're stunimmune
 	if(isanimal(L))
 		var/mob/living/simple_animal/S = L
@@ -190,6 +191,7 @@
 
 /datum/proximity_monitor/advanced/timestop/proc/unfreeze_mob(mob/living/L)
 	L.AdjustStun(-20, 1, 1)
+	REMOVE_TRAIT(L, TRAIT_MUTE, TIMESTOP_TRAIT)
 	frozen_mobs -= L
 	if(isanimal(L))
 		var/mob/living/simple_animal/S = L