diff --git a/1_k/1_lambda/lesson_1/Makefile b/1_k/1_lambda/lesson_1/Makefile
index 4211afaf..4c1c1a28 100644
--- a/1_k/1_lambda/lesson_1/Makefile
+++ b/1_k/1_lambda/lesson_1/Makefile
@@ -1,7 +1,7 @@
 MAKEFILE_PATH := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
 DEF=lambda
 EXT=lambda
-KOMPILE_FLAGS=--gen-bison-parser
+KOMPILE_FLAGS=--gen-glr-bison-parser
 
 %/arithmetic-div-zero.lambda:
 	true