diff --git a/Makefile b/Makefile
index 64d12399..21dc042f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
 CC=gcc
+SRCS = $(wildcard src/*.c)
 
 all: build run
 
@@ -11,7 +12,7 @@ build-lib:
 	cd src; \
 	yacc -d parse.y; \
 	lex scan.l
-	 $(CC) -Wall -shared -o lib/libpicrin.so -I./include -lreadline src/state.c src/gc.c src/pair.c src/port.c src/symbol.c src/value.c src/y.tab.c src/lex.yy.c src/bool.c src/vm.c src/init.c src/number.c src/time.c src/codegen.c src/error.c
+	 $(CC) -Wall -shared -o lib/libpicrin.so -I./include -lreadline $(SRCS)
 
 clean:
 	rm -f src/y.tab.c src/y.tab.h src/lex.yy.c