diff --git a/2019/endoh/Makefile b/2019/endoh/Makefile
index 1b69e14a1..ed4a3aa2c 100644
--- a/2019/endoh/Makefile
+++ b/2019/endoh/Makefile
@@ -160,6 +160,7 @@ clean:
 
 clobber: clean
 	${RM} -f ${TARGET} ${ALT_TARGET}
+	${RM} -rf ${TARGET}.dSYM
 	@-if [ -e sandwich ]; then \
 	    ${RM} -f sandwich; \
 	    echo 'ate sandwich'; \