diff --git a/src/lager.erl b/src/lager.erl
index 2ad888b..d36de0b 100644
--- a/src/lager.erl
+++ b/src/lager.erl
@@ -392,7 +392,7 @@ status() ->
                     Level = get_loglevel(Sink, Handler),
                     case Handler of
                         {lager_file_backend, File} ->
-                            io_lib:format("File ~s (~s) at level ~p\n", [File, Sink, Level]);
+                            io_lib:format("File ~ts (~s) at level ~p\n", [File, Sink, Level]);
                         lager_console_backend ->
                             io_lib:format("Console (~s) at level ~p\n", [Sink, Level]);
                         _ ->
diff --git a/src/lager_crash_log.erl b/src/lager_crash_log.erl
index 5a48238..b3377f6 100644
--- a/src/lager_crash_log.erl
+++ b/src/lager_crash_log.erl
@@ -80,7 +80,7 @@ init([RelFilename, MaxBytes, Size, Date, Count, Rotator]) ->
                     fmtmaxbytes=MaxBytes, size=Size, count=Count, date=Date,
                     rotator=Rotator}};
         {error, Reason} ->
-            ?INT_LOG(error, "Failed to open crash log file ~s with error: ~s",
+            ?INT_LOG(error, "Failed to open crash log file ~ts with error: ~s",
                 [Filename, file:format_error(Reason)]),
             {ok, #state{name=Filename, fmtmaxbytes=MaxBytes, flap=true,
                     size=Size, count=Count, date=Date, rotator=Rotator}}
@@ -216,7 +216,7 @@ do_log({log, Event}, #state{name=Name, fd=FD, inode=Inode, flap=Flap,
                     Msg = io_lib:format("~s~s~s", [Time, MsgStr, NodeSuffix]),
                     case file:write(NewFD, unicode:characters_to_binary(Msg)) of
                         {error, Reason} when Flap == false ->
-                            ?INT_LOG(error, "Failed to write log message to file ~s: ~s",
+                            ?INT_LOG(error, "Failed to write log message to file ~ts: ~s",
                                 [Name, file:format_error(Reason)]),
                             {ok, State#state{fd=NewFD, inode=NewInode, flap=true}};
                         ok ->
@@ -229,7 +229,7 @@ do_log({log, Event}, #state{name=Name, fd=FD, inode=Inode, flap=Flap,
                         true ->
                             {ok, State};
                         _ ->
-                            ?INT_LOG(error, "Failed to reopen crash log ~s with error: ~s",
+                            ?INT_LOG(error, "Failed to reopen crash log ~ts with error: ~s",
                                 [Name, file:format_error(Reason)]),
                             {ok, State#state{flap=true}}
                     end
diff --git a/src/lager_file_backend.erl b/src/lager_file_backend.erl
index e725312..1e9caab 100644
--- a/src/lager_file_backend.erl
+++ b/src/lager_file_backend.erl
@@ -126,7 +126,7 @@ init(LogFileConfig) when is_list(LogFileConfig) ->
                 {ok, {FD, Inode, _}} ->
                     State0#state{fd=FD, inode=Inode};
                 {error, Reason} ->
-                    ?INT_LOG(error, "Failed to open log file ~s with error ~s", [Name, file:format_error(Reason)]),
+                    ?INT_LOG(error, "Failed to open log file ~ts with error ~s", [Name, file:format_error(Reason)]),
                     State0#state{flap=true}
             end,
             {ok, State}
@@ -149,7 +149,7 @@ handle_call({set_loghwm, Hwm}, #state{shaper=Shaper, name=Name} = State) ->
             {ok, {error, bad_log_hwm}, State};
         _ ->
             NewShaper = Shaper#lager_shaper{hwm=Hwm},
-            ?INT_LOG(notice, "Changed loghwm of ~s to ~p", [Name, Hwm]),
+            ?INT_LOG(notice, "Changed loghwm of ~ts to ~p", [Name, Hwm]),
             {ok, {last_loghwm, Shaper#lager_shaper.hwm}, State#state{shaper=NewShaper}}
     end;
 handle_call(rotate, State = #state{name=File}) ->
@@ -255,7 +255,7 @@ write(#state{name=Name, fd=FD, inode=Inode, flap=Flap, size=RotSize,
                                 true ->
                                     State;
                                 _ ->
-                                    ?INT_LOG(error, "Failed to rotate log file ~s with error ~s", [Name, file:format_error(Reason)]),
+                                    ?INT_LOG(error, "Failed to rotate log file ~ts with error ~s", [Name, file:format_error(Reason)]),
                                     State#state{flap=true}
                             end
                     end;
@@ -267,7 +267,7 @@ write(#state{name=Name, fd=FD, inode=Inode, flap=Flap, size=RotSize,
                         true ->
                             State;
                         _ ->
-                            ?INT_LOG(error, "Failed to reopen log file ~s with error ~s", [Name, file:format_error(Reason)]),
+                            ?INT_LOG(error, "Failed to reopen log file ~ts with error ~s", [Name, file:format_error(Reason)]),
                             State#state{flap=true}
                     end
             end;
@@ -284,7 +284,7 @@ do_write(#state{fd=FD, name=Name, flap=Flap} = State, Level, Msg) ->
             %% force a sync on any message that matches the 'sync_on' bitmask
             Flap2 = case file:datasync(FD) of
                 {error, Reason2} when Flap == false ->
-                    ?INT_LOG(error, "Failed to write log message to file ~s: ~s",
+                    ?INT_LOG(error, "Failed to write log message to file ~ts: ~s",
                         [Name, file:format_error(Reason2)]),
                     true;
                 ok ->
@@ -327,7 +327,7 @@ validate_logfile_proplist(List) ->
             end
     catch
         {bad_config, Msg, Value} ->
-            ?INT_LOG(error, "~s ~p for file ~p",
+            ?INT_LOG(error, "~s ~p for file ~tp",
                 [Msg, Value, proplists:get_value(file, List)]),
             false
     end.