diff --git a/unix/Makefile b/unix/Makefile
index 11efc6259ba93e8f30618ad2d704f26d7f2651bf..5b262822120c3221da07078668ed0da61d6bf5e6 100644
--- a/unix/Makefile
+++ b/unix/Makefile
@@ -30,6 +30,7 @@ PY_O = \
 	emitinlinethumb.o \
 	runtime.o \
 	vm.o \
+	showbc.o \
 	repl.o \
 
 OBJ = $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(PY_O))