diff --git a/common.mk b/common.mk
index 74b393fa52..08bdd6bd32 100644
--- a/common.mk
+++ b/common.mk
@@ -211,8 +211,8 @@ exts: build-ext
 
 EXTS_MK = exts.mk
 $(EXTS_MK): ext/configure-ext.mk $(TIMESTAMPDIR)/.$(arch).time $(srcdir)/template/exts.mk.tmpl
-	$(MAKE) -f ext/configure-ext.mk V=$(V) MINIRUBY='$(MINIRUBY)' \
-		SCRIPT_ARGS='$(SCRIPT_ARGS)' EXTSTATIC=$(EXTSTATIC) \
+	$(MAKE) -f ext/configure-ext.mk V=$(V) MINIRUBY="$(MINIRUBY)" \
+		EXTSTATIC=$(EXTSTATIC) \
 		gnumake=$(gnumake) EXTLDFLAGS="$(EXTLDFLAGS)" srcdir="$(srcdir)"
 	$(ECHO) generating makefile $@
 	$(Q)$(MINIRUBY) $(srcdir)/tool/generic_erb.rb -o $@ -c \
diff --git a/template/configure-ext.mk.tmpl b/template/configure-ext.mk.tmpl
index 622bb25551..b8d4a67f7e 100644
--- a/template/configure-ext.mk.tmpl
+++ b/template/configure-ext.mk.tmpl
@@ -18,8 +18,8 @@ all:
 % exts.each do |dir|
 all: ext/<%=dir%>/exts.mk
 ext/<%=dir%>/exts.mk: FORCE
-	$(Q)$(MINIRUBY) $(srcdir)/ext/extmk.rb --make="$(MAKE)" --command-output=ext/<%=dir%>/exts.mk \
-		$(SCRIPT_ARGS) --extension=<%=dir%> --extstatic $(EXTSTATIC) \
+	$(Q)$(MINIRUBY) $(srcdir)/ext/extmk.rb --make='$(MAKE)' --command-output=ext/<%=dir%>/exts.mk \
+		--extension=<%=dir%> --extstatic $(EXTSTATIC) \
 		--gnumake=$(gnumake) --extflags="$(EXTLDFLAGS)" \
 		-- subconfigure
 % end
diff --git a/template/exts.mk.tmpl b/template/exts.mk.tmpl
index 6fadf79108..656d7fdcd1 100644
--- a/template/exts.mk.tmpl
+++ b/template/exts.mk.tmpl
@@ -71,7 +71,8 @@ SUBMAKEOPTS = DLDOBJS="$(EXTOBJS) $(EXTENCS)" EXTOBJS= \
 	      EXTLDFLAGS="$(EXTLDFLAGS)" EXTINITS="$(EXTINITS)" \
 	      UPDATE_LIBRARIES="$(UPDATE_LIBRARIES)" SHOWFLAGS=
 
-all static: ruby
+all: ruby
+static: ruby
 
 clean:
 	-$(Q)$(RM) ext/extinit.<%= objext %>