diff --git a/common.mk b/common.mk
index 324bd4a47a..bc0fd462ea 100644
--- a/common.mk
+++ b/common.mk
@@ -150,7 +150,7 @@ COMMONOBJS    = array.$(OBJEXT) \
 		vm_dump.$(OBJEXT) \
 		vm_sync.$(OBJEXT) \
 		vm_trace.$(OBJEXT) \
-                yjit.$(OBJEXT) \
+		yjit.$(OBJEXT) \
 		$(COROUTINE_OBJ) \
 		$(DTRACE_OBJ) \
 		$(BUILTIN_ENCOBJS) \
@@ -1059,7 +1059,7 @@ BUILTIN_RB_SRCS = \
 		$(srcdir)/nilclass.rb \
 		$(srcdir)/prelude.rb \
 		$(srcdir)/gem_prelude.rb \
-                $(srcdir)/yjit.rb \
+		$(srcdir)/yjit.rb \
 		$(empty)
 BUILTIN_RB_INCS = $(BUILTIN_RB_SRCS:.rb=.rbinc)