diff --git a/samples/Makefile b/samples/Makefile
old mode 100644
new mode 100755
index 02a1f66d..e63ce4fb
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -100,6 +100,7 @@ ifneq (,$(findstring x86,$(UNICORN_ARCHS)))
 SOURCES += sample_x86.c
 SOURCES += shellcode.c
 SOURCES += mem_apis.c
+SOURCES += sample_x86_32_gdt_and_seg_regs.c
 endif
 ifneq (,$(findstring m68k,$(UNICORN_ARCHS)))
 SOURCES += sample_m68k.c
@@ -114,7 +115,7 @@ all: $(BINARY)
 clean:
 	rm -rf *.o $(OBJS_ELF) $(BINARY) $(SAMPLEDIR)/*.exe $(SAMPLEDIR)/*.static $(OBJDIR)/lib$(LIBNAME)* $(OBJDIR)/$(LIBNAME)*
 	rm -rf libunicorn*.so libunicorn*.lib libunicorn*.dylib unicorn*.dll unicorn*.lib
-	rm -rf sample_x86 sample_arm sample_arm64 sample_mips sample_sparc sample_ppc sample_m68k shellcode mem_apis
+	rm -rf sample_x86 sample_arm sample_arm64 sample_mips sample_sparc sample_ppc sample_m68k shellcode mem_apis sample_x86_32_gdt_and_seg_regs
 
 $(BINARY): $(OBJS)
 
diff --git a/samples/sample_x86_32_gdt_and_seg_regs.c b/samples/sample_x86_32_gdt_and_seg_regs.c
old mode 100755
new mode 100644