1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 6029251..aa65eb0 100644
--- a/Makefile
+++ b/Makefile
@@ -25,7 +25,7 @@ endif
 .PHONY: all run pack classes dirs clean
 all: classes
 
-classes:
+classes: dirs
 	$(JAVAC) $(JAVAC_ARGS) -d build $(SOURCES)
 
 .ONESHELL: