diff --git a/Makefile b/Makefile
index 7285a1b..06387f3 100644
--- a/Makefile
+++ b/Makefile
@@ -32,8 +32,8 @@ endif
 
 INCLUDE := -I./include/
 
-CFLAGS   := -std=c99 -Wall -D_WIN32_WINNT=0x0500 -DHAVE_REMOTE $(DBG_OPT) $(INCLUDE)
-CXXFLAGS := -std=c++0x -Wall -DHAVE_REMOTE $(DBG_OPT) $(INCLUDE)
+CFLAGS   := -std=c99 -mno-ms-bitfields -Wall -D_WIN32_WINNT=0x0500 -DHAVE_REMOTE $(DBG_OPT) $(INCLUDE)
+CXXFLAGS := -std=c++0x -mno-ms-bitfields -Wall -DHAVE_REMOTE $(DBG_OPT) $(INCLUDE)
 
 # Used by mkdeps.pl
 #