1 files changed, 2 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 9a0315db..9e4899f9 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,8 @@ CC=gcc
 CFLAGS=-g -Wall
 
 PROGRAMS=test-lexing test-parsing
-HEADERS=token.h parse.h lib.h symbol.h scope.h
-COMMON=parse.o tokenize.o pre-process.o symbol.o lib.o scope.o
+HEADERS=token.h parse.h lib.h symbol.h scope.h expression.h
+COMMON=parse.o tokenize.o pre-process.o symbol.o lib.o scope.o expression.o
 
 all: $(PROGRAMS)