diff --git a/bochs/bios/Makefile.in b/bochs/bios/Makefile.in
index b994511e3..9aa9b6e24 100644
--- a/bochs/bios/Makefile.in
+++ b/bochs/bios/Makefile.in
@@ -33,7 +33,7 @@ SHELL = /bin/sh
 @SET_MAKE@
 
 CXX = @CXX@
-CXXFLAGS = @CXXFLAGS@ @GUI_CXXFLAGS@
+CXXFLAGS = @CXXFLAGS@
 
 LDFLAGS = @LDFLAGS@
 LIBS = @LIBS@