diff --git a/prism/src/parser/Makefile b/prism/src/parser/Makefile
index a3f4f433..0c9aca52 100644
--- a/prism/src/parser/Makefile
+++ b/prism/src/parser/Makefile
@@ -10,7 +10,7 @@
 THIS_DIR = parser
 PRISM_DIR_REL = ../..
 
-JAVA_FILES = $(wildcard *.java ast/*.java visitor/*.java)
+JAVA_FILES = $(wildcard *.java ast/*.java type/*.java visitor/*.java)
 CLASS_FILES = $(JAVA_FILES:%.java=$(PRISM_DIR_REL)/$(CLASSES_DIR)/$(THIS_DIR)/%.class)
 
 default: all