diff --git a/leaderboard.lua b/leaderboard.lua
index 47b13dc..4de2738 100644
--- a/leaderboard.lua
+++ b/leaderboard.lua
@@ -257,60 +257,62 @@ local function stat_str(stat)
 end
 
 -- Read the leaderboard
-local f = io.open(FILENAME, "r")
-if f then
-	for l in f:lines() do
-		-- Leaderboard is stored in the following tab separated format
-		-- mapnum, name, skin, color, time, splits, flags, stat
-		local t = {}
-		for word in (l+"\t"):gmatch("(.-)\t") do
-			table.insert(t, word)
-		end
-
-		local flags = 0
-		if t[7] != nil then
-			flags = tonumber(t[7])
-		end
-
-		scoreTable = getScoreTable(tonumber(t[1]), flags) or {}
-
-		local spl = {}
-		if t[6] != nil then
-			for str in t[6]:gmatch("([^ ]+)") do
-				table.insert(spl, tonumber(str))
+if isserver then
+	local f = io.open(FILENAME, "r")
+	if f then
+		for l in f:lines() do
+			-- Leaderboard is stored in the following tab separated format
+			-- mapnum, name, skin, color, time, splits, flags, stat
+			local t = {}
+			for word in (l+"\t"):gmatch("(.-)\t") do
+				table.insert(t, word)
 			end
-		end
 
-		local stats = nil
-		if t[8] != nil then
-			if #t[8] >= 2 then
-				local speed = tonumber(string.sub(t[8], 1, 1))
-				local weight = tonumber(string.sub(t[8], 2, 2))
-				stats = stat_t(speed, weight)
+			local flags = 0
+			if t[7] != nil then
+				flags = tonumber(t[7])
 			end
-		end
 
-		table.insert(
-			scoreTable,
-			score_t(
-				tonumber(t[1]),
-				t[2],
-				t[3],
-				t[4],
-				tonumber(t[5]),
-				spl,
-				flags,
-				stats
+			scoreTable = getScoreTable(tonumber(t[1]), flags) or {}
+
+			local spl = {}
+			if t[6] != nil then
+				for str in t[6]:gmatch("([^ ]+)") do
+					table.insert(spl, tonumber(str))
+				end
+			end
+
+			local stats = nil
+			if t[8] != nil then
+				if #t[8] >= 2 then
+					local speed = tonumber(string.sub(t[8], 1, 1))
+					local weight = tonumber(string.sub(t[8], 2, 2))
+					stats = stat_t(speed, weight)
+				end
+			end
+
+			table.insert(
+				scoreTable,
+				score_t(
+					tonumber(t[1]),
+					t[2],
+					t[3],
+					t[4],
+					tonumber(t[5]),
+					spl,
+					flags,
+					stats
+				)
 			)
-		)
 
-		setScoreTable(tonumber(t[1]), flags, scoreTable)
+			setScoreTable(tonumber(t[1]), flags, scoreTable)
+		end
+
+		sortScores()
+		f:close()
+	else
+		print("Failed to open file: ", FILENAME)
 	end
-
-	sortScores()
-	f:close()
-else
-	print("Failed to open file: ", FILENAME)
 end
 
 function allowJoin(v)
@@ -1259,30 +1261,32 @@ local function saveTime(player)
 		StatTrack = true
 	end
 
-	local f = assert(io.open(FILENAME, "w"))
-	if f == nil then
-		print("Failed to open file for writing: " + FILENAME)
-		return
-	end
+	if isserver then
+		local f = assert(io.open(FILENAME, "w"))
+		if f == nil then
+			print("Failed to open file for writing: " + FILENAME)
+			return
+		end
 
-	for _, tbl in pairs(lb) do
-		for _, scoreTable in pairs(tbl) do
-			for _, score in ipairs(scoreTable) do
-				f:write(
-					score["map"], "\t",
-					score["name"], "\t",
-					score["skin"], "\t",
-					score["color"], "\t",
-					score["time"], "\t",
-					table.concat(score["splits"], " "), "\t",
-					score["flags"], "\t",
-					stat_str(score["stat"]), "\n"
-				)
+		for _, tbl in pairs(lb) do
+			for _, scoreTable in pairs(tbl) do
+				for _, score in ipairs(scoreTable) do
+					f:write(
+						score["map"], "\t",
+						score["name"], "\t",
+						score["skin"], "\t",
+						score["color"], "\t",
+						score["time"], "\t",
+						table.concat(score["splits"], " "), "\t",
+						score["flags"], "\t",
+						stat_str(score["stat"]), "\n"
+					)
+				end
 			end
 		end
-	end
 
-	f:close()
+		f:close()
+	end
 end
 
 -- DEBUGGING