diff --git a/contrib/sdk/sources/SDL-1.2.2/src/Tupfile.lua b/contrib/sdk/sources/SDL-1.2.2/src/Tupfile.lua
index 7a3fa74250..a11bb8de1d 100644
--- a/contrib/sdk/sources/SDL-1.2.2/src/Tupfile.lua
+++ b/contrib/sdk/sources/SDL-1.2.2/src/Tupfile.lua
@@ -2,7 +2,7 @@ if tup.getconfig("NO_GCC") ~= "" or tup.getconfig("NO_NASM") ~= "" then return e
 tup.include("../../../../../programs/use_gcc.lua")
 tup.include("../../../../../programs/use_menuetlibc.lua")
 tup.include("../../../../../programs/use_sound.lua")
-INCLUDES = INCLUDES .. " -I. -I../include -Ihermes -Iaudio -Ivideo -Ievents -Ijoystick -Icdrom -Ithread -Itimer -Iendian -Ifile"
+INCLUDES = INCLUDES .. " -I. -I../include -I../../newlib/libc/include/ -Ihermes -Iaudio -Ivideo -Ievents -Ijoystick -Icdrom -Ithread -Itimer -Iendian -Ifile"
 CFLAGS = CFLAGS .. ' -D_REENTRANT -DPACKAGE=\"SDL\" -DVERSION=\"1.2.2\"'
 CFLAGS = CFLAGS .. ' -DENABLE_AUDIO -UDISABLE_AUDIO -DDISABLE_JOYSTICK'
 CFLAGS = CFLAGS .. ' -DDISABLE_CDROM -DDISABLE_THREADS -DENABLE_TIMERS'