diff --git a/Makefile b/Makefile
index 339bee1..0e2c273 100644
--- a/Makefile
+++ b/Makefile
@@ -1,28 +1,28 @@
 $(CC)=clang
 
-default: tokenize.c closures.c tokenize.h closures.h
+default: tokenize.c closures.c tokenize.h RTS.h
 	$(CC) -DNDEBUG -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -O3 ./tokenize.c -lmaa;
 	$(CC) -DNDEBUG -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -O3 ./closures.c;
 
-unsafe: tokenize.c closures.c tokenize.h closures.h
+unsafe: tokenize.c closures.c tokenize.h RTS.h
 	$(CC) -DNDEBUG -std=c99 -O3 ./tokenize.c -lmaa;
 	$(CC) -DNDEBUG -std=c99 -O3 ./closures.c;
 
-unsafelib: tokenize.c closures.c tokenize.h closures.h
+unsafelib: tokenize.c closures.c tokenize.h RTS.h
 	$(CC) -DLIB -DNDEBUG -c -fpic -std=c99 -O3 ./tokenize.c;
 	$(CC) -shared -o tokenize.so tokenize.o -lmaa;
 
 	$(CC) -DLIB -DNDEBUG -c -fpic -std=c99 -O3 ./closures.c;
 	$(CC) -shared -o closures.so closures.o;
 
-lib: tokenize.c closures.c tokenize.h closures.h
+lib: tokenize.c closures.c tokenize.h RTS.h
 	$(CC) -DLIB -DNDEBUG -c -fpic -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -O3 ./tokenize.c
 	$(CC) -shared -o tokenize.so tokenize.o -lmaa;
 
 	$(CC) -DLIB -DNDEBUG -c -fpic -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 -O3 ./closures.c;
 	$(CC) -shared -o closures.so closures.o;
 
-debug: tokenize.c closures.c tokenize.h closures.h
+debug: tokenize.c closures.c tokenize.h RTS.h
 	$(CC) -g -c -fpic -Wall -Wextra -pedantic -Wpointer-arith -Werror -std=c99 ./tokenize.c;
 	$(CC) -shared -o tokenize.so tokenize.o -lmaa;
 
diff --git a/closures.h b/RTS.h
similarity index 100%
rename from closures.h
rename to RTS.h