diff --git a/external/bsd/llvm/Makefile.inc b/external/bsd/llvm/Makefile.inc
index 8cfb4ca75..4e8282247 100644
--- a/external/bsd/llvm/Makefile.inc
+++ b/external/bsd/llvm/Makefile.inc
@@ -42,7 +42,11 @@ MCLINKER_INCLUDE_CONFIG= ${LLVM_TOPLEVEL}/config/mclinker
 LLVM_INCLUDE_OBJDIR!=	cd ${NETBSDSRCDIR}/tools/llvm-include && ${PRINTOBJDIR}
 LLVM_TOOLCONF_OBJDIR!=	cd ${NETBSDSRCDIR}/tools/llvm && ${PRINTOBJDIR}
 HOST_CPPFLAGS+=	${CPPFLAGS}
+.if !defined(__MINIX)
 HOST_CXXFLAGS+=	-O2 -g -fno-rtti -fno-exceptions
+.else
+HOST_CXXFLAGS+=	-O2 -fno-rtti -fno-exceptions
+.endif # !defined(__MINIX)
 .if ${MKLLD:Uno} == "yes"
 HOST_CPPFLAGS+=	-std=c++11
 .endif