diff --git a/Makefile.inc1 b/Makefile.inc1
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -817,6 +817,7 @@
 # TOOLS_PREFIX set in BMAKE
 XMAKE=		${BMAKE} \
 		TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
+		MK_CLANG=${MK_CLANG_BOOTSTRAP} \
 		MK_LLDB=no \
 		MK_LLVM_BINUTILS=no \
 		MK_TESTS=no
@@ -2930,7 +2931,7 @@
 .endif
 
 .if ${MK_CLANG_BOOTSTRAP} != "no"
-_clang=		usr.bin/clang
+_clang=		usr.bin/clang/clang
 .endif
 .if ${MK_LLD_BOOTSTRAP} != "no"
 _lld=		usr.bin/clang/lld