make/common/SetupJavaCompilers.gmk

@@ -86,10 +86,10 @@
 # I.e. the rt.jar, but since rt.jar has not yet been generated
 # (it will be in "make images") therefore we use classes instead.
 $(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)))
 
 endif # _SETUP_GMK