diff --git a/sysinfo/toolchain/clang.mk b/sysinfo/toolchain/clang.mk
index d239319..ae8b40c 100644
--- a/sysinfo/toolchain/clang.mk
+++ b/sysinfo/toolchain/clang.mk
@@ -8,7 +8,7 @@ endif
 
 
 CC 		= $(NATIVE_CC) $(CROSS_HOST_SPEC)
-CPP 		= $(NATIVE_CC) $(CROSS_HOST_SPEC)
+CPP 		= $(NATIVE_CC) $(CROSS_HOST_SPEC) -E
 CXX 		= $(NATIVE_CC)++ $(CROSS_HOST_SPEC)