diff -r 4d2a15091124 -r 59abac94e4f2 make/common/SetupJavaCompilers.gmk
--- a/make/common/SetupJavaCompilers.gmk	Wed Jul 05 22:04:04 2017 +0200
+++ b/make/common/SetupJavaCompilers.gmk	Wed Aug 10 15:49:03 2016 -0700
@@ -88,7 +88,7 @@
 $(eval $(call SetupJavaCompiler,GENERATE_USINGJDKBYTECODE, \
     JVM := $(JAVA_SMALL), \
     JAVAC := $(NEW_JAVAC), \
-    FLAGS := -upgrademodulepath $(JDK_OUTPUTDIR)/modules -system none $(DISABLE_WARNINGS), \
+    FLAGS := --upgrade-module-path $(JDK_OUTPUTDIR)/modules -system none $(DISABLE_WARNINGS), \
     SERVER_DIR := $(SJAVAC_SERVER_DIR), \
     SERVER_JVM := $(SJAVAC_SERVER_JAVA)))