diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index cfcaa3b950f..442eac949d4 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -108,9 +108,12 @@ CFLAGS+=	-falign-functions=16
 .endif
 .if ${PROFLEVEL} >= 2
 CFLAGS+=	-DGPROF4 -DGUPROF
-PROF=	-pg -mprofiler-epilogue
+PROF=		-pg
+.if ${COMPILER_TYPE} != "clang"
+PROF+=		-mprofiler-epilogue
+.endif
 .else
-PROF=	-pg
+PROF=		-pg
 .endif
 .endif
 DEFINED_PROF=	${PROF}