1 files changed, 0 insertions, 1 deletions
diff --git a/common.mk b/common.mk
index 38c87911d1..24468d87e9 100644
--- a/common.mk
+++ b/common.mk
@@ -62,7 +62,6 @@ CAPIOUT       = doc/capi
 MJIT_HEADER   = rb_mjit_header.h
 MJIT_MIN_HEADER = $(MJIT_HEADER_BUILD_DIR)/rb_mjit_min_header-$(RUBY_PROGRAM_VERSION).h
 MJIT_CPPFLAGS = -DMJIT_HEADER_INSTALL_DIR=\""$(MJIT_HEADER_INSTALL_DIR)"\" \
-		-DMJIT_HEADER_BUILD_DIR=\""$(MJIT_HEADER_BUILD_DIR)"\" \
 		-DLIBRUBYARG_SHARED=\""$(LIBRUBYARG_SHARED)"\"
 MJIT_HEADER_BUILD_DIR = $(EXTOUT)/include/$(arch)
 MJIT_HEADER_INSTALL_DIR = include/$(RUBY_BASE_NAME)-$(ruby_version)/$(arch)