diff --git a/code/game/objects/structures/safe.dm b/code/game/objects/structures/safe.dm
index aad0486bbd0..b0df47bcbd7 100644
--- a/code/game/objects/structures/safe.dm
+++ b/code/game/objects/structures/safe.dm
@@ -32,10 +32,10 @@ FLOOR SAFES
 	tumbler_1_pos = rand(0, 99)
 	do
 	tumbler_1_open = rand(0, 99)
-	while(tumbler_1_open > Wrap(tumbler_2_open +48, 0, 99) && tumbler_1_open < Wrap(tumbler_2_open + 53, 0, 99)) // prevents a combination that wont open
+	while(tumbler_1_open > Wrap(tumbler_2_open +48, 0, 100) && tumbler_1_open < Wrap(tumbler_2_open + 53, 0, 100)) // prevents a combination that wont open
 	do
 		open_pos = rand(0,99)
-	while(open_pos > Wrap(tumbler_1_open - 2, 0, 99) && open_pos < Wrap(tumbler_1_open + 2, 0, 99)) // prevents a combination that wont open
+	while(open_pos > Wrap(tumbler_1_open - 2, 0, 100) && open_pos < Wrap(tumbler_1_open + 2, 0, 100)) // prevents a combination that wont open
 	var/num1 = tumbler_2_open + 54
 	if(num1 > 99)
 		num1 = num1 - 100
@@ -145,12 +145,12 @@ FLOOR SAFES
 			return
 		for(var/i=1 to ticks)
 			if(!check_unlocked())
-				dial = Wrap(dial - 1, 0 ,99)
+				dial = Wrap(dial - 1, 0 ,100)
 				if(dial == tumbler_1_pos + 1 || dial == tumbler_1_pos - 99)
-					tumbler_1_pos = Wrap(tumbler_1_pos - 1, 0, 99)
+					tumbler_1_pos = Wrap(tumbler_1_pos - 1, 0, 100)
 					tum1_turns++
 					if(tumbler_1_pos == tumbler_2_pos + 51 || tumbler_1_pos == tumbler_2_pos - 49)
-						tumbler_2_pos = Wrap(tumbler_1_pos - 1, 0, 99)
+						tumbler_2_pos = Wrap(tumbler_2_pos - 1, 0, 100)
 						tum2_turns++
 		check_unlocked()
 		make_noise(tum1_turns, tum2_turns, user, canhear)
@@ -164,12 +164,12 @@ FLOOR SAFES
 			return
 		for(var/i=1 to ticks)
 			check_unlocked()
-			dial = Wrap(dial + 1, 0, 99)
+			dial = Wrap(dial + 1, 0, 100)
 			if(dial == tumbler_1_pos - 1 || dial == tumbler_1_pos + 99)
-				tumbler_1_pos = Wrap(tumbler_1_pos + 1, 0, 99)
+				tumbler_1_pos = Wrap(tumbler_1_pos + 1, 0, 100)
 				tum1_turns++
 				if(tumbler_1_pos == tumbler_2_pos - 51 || tumbler_1_pos == tumbler_2_pos + 49)
-					tumbler_2_pos = Wrap(tumbler_2_pos + 1, 0, 99)
+					tumbler_2_pos = Wrap(tumbler_2_pos + 1, 0, 100)
 					tum2_turns++
 		make_noise(tum1_turns, tum2_turns, user, canhear)
 		.=1