--- a/make/hotspot/lib/CompileLibjsig.gmk	Mon Dec 04 13:13:44 2017 -0800
+++ b/make/hotspot/lib/CompileLibjsig.gmk	Mon Dec 04 23:55:52 2017 +0100
@@ -57,7 +57,7 @@
       endif
 
     else ifeq ($(OPENJDK_TARGET_OS), solaris)
-      LIBJSIG_CFLAGS := -m64 -KPIC -mt -I $(TOPDIR)/src/java.base/unix/native/include
+      LIBJSIG_CFLAGS := -m64 -KPIC -mt -I $(TOPDIR)/src/hotspot/os/$(HOTSPOT_TARGET_OS_TYPE)/include
       LIBJSIG_LDFLAGS := -m64 -mt -xnolib
       LIBJSIG_LIBS := $(LIBDL)