diff --git a/Makefile b/Makefile
index 159833e..0ba5875 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ OBJ=Storage.o 		\
 	nextstep.o		\
 
 $(TARGET): $(OBJ)
-	$(CC) $^ -o $@ -lSDL2
+	$(CC) $^ -o $@ -lSDL2 -lm
 
 %.o: %.cpp
 	$(CC) -g -c $< -o $@