diff --git a/runtime/syntax/generator/Makefile b/runtime/syntax/generator/Makefile
index 3cf4b95..a7ccba3 100644
--- a/runtime/syntax/generator/Makefile
+++ b/runtime/syntax/generator/Makefile
@@ -1,5 +1,5 @@
 VIM_SRCDIR = ../../../src
-RUN_VIM = $(VIM_SRCDIR)/vim -N -u NONE -i NONE -n
+RUN_VIMPROG = $(VIM_SRCDIR)/vim -N -u NONE -i NONE -n
 REVISION ?= $(shell date +%Y-%m-%dT%H:%M:%S%:z)
 
 SRC =	$(VIM_SRCDIR)/eval.c $(VIM_SRCDIR)/ex_cmds.h $(VIM_SRCDIR)/ex_docmd.c \
@@ -15,13 +15,13 @@
 vim.vim: vim.vim.rc update_date.vim
 	@echo "Generating vim.vim ..."
 	@cp -f vim.vim.rc ../vim.vim
-	@$(RUN_VIM) -S update_date.vim
+	@$(RUN_VIMPROG) -S update_date.vim
 	@echo "done."
 
 vim.vim.rc: gen_syntax_vim.vim vim.vim.base $(SRC)
 	@echo "Generating vim.vim.rc ..."
 	@rm -f sanity_check.err generator.err
-	@$(RUN_VIM) -S gen_syntax_vim.vim
+	@$(RUN_VIMPROG) -S gen_syntax_vim.vim
 	@if test -f sanity_check.err ; then \
 		echo ; \
 		echo "Sanity errors:" ; \