1 files changed, 1 insertions, 0 deletions
diff --git a/common.mk b/common.mk
index eb681bbb9c..6b182bac4d 100644
--- a/common.mk
+++ b/common.mk
@@ -13,6 +13,7 @@ ECHO = @$(ECHO0)
 
 UNICODE_VERSION = 8.0.0
 
+RUBY_PROGRAM_VERSION = $(MAJOR).$(MINOR).$(TEENY)
 RUBY_RELEASE_DATE = $(RUBY_RELEASE_YEAR)-$(RUBY_RELEASE_MONTH)-$(RUBY_RELEASE_DAY)
 RUBYLIB       = $(PATH_SEPARATOR)
 RUBYOPT       = -