diff --git a/core/combo/HOST_windows-x86.mk b/core/combo/HOST_windows-x86.mk
index 573d93668..30c1c755d 100644
--- a/core/combo/HOST_windows-x86.mk
+++ b/core/combo/HOST_windows-x86.mk
@@ -36,7 +36,7 @@ $(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -D__USE_MINGW_ANSI_STDIO=1
 # Admit to using >= Win2K.
 $(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -D_WIN32_WINNT=0x0500
 # Get 64-bit off_t and related functions.
-$(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE=1
+$(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -D_FILE_OFFSET_BITS=64
 
 $(combo_2nd_arch_prefix)HOST_CC := $(TOOLS_PREFIX)gcc$(TOOLS_EXE_SUFFIX)
 $(combo_2nd_arch_prefix)HOST_CXX := $(TOOLS_PREFIX)g++$(TOOLS_EXE_SUFFIX)