diff --git a/edify/Android.mk b/edify/Android.mk
index 9b859d4..038dec0 100644
--- a/edify/Android.mk
+++ b/edify/Android.mk
@@ -3,8 +3,8 @@
 LOCAL_PATH := $(call my-dir)
 
 edify_src_files := \
-	lexer.l \
-	parser.y \
+	lexer.ll \
+	parser.yy \
 	expr.cpp
 
 #
diff --git a/edify/lexer.l b/edify/lexer.ll
similarity index 100%
rename from edify/lexer.l
rename to edify/lexer.ll
diff --git a/edify/parser.y b/edify/parser.yy
similarity index 100%
rename from edify/parser.y
rename to edify/parser.yy