diff --git a/Makefile b/Makefile
index dec8607..b1799e3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,7 @@
 PNGS = built/use_cases_diagram.png built/schema_diagram.png built/schema_graph.png
 PDFS = built/DesignUseCases.pdf built/screen_sequence_diagram.pdf
 SCREEN_SEQUENCE_DOTS = $(wildcard screen_sequence_diagrams/*.dot)
-$(info $(SCREEN_SEQUENCE_DOTS))
 SCREEN_SEQUENCE_PNGS = $(patsubst screen_sequence_diagrams/%,built/%,$(patsubst %.dot,%.png,$(SCREEN_SEQUENCE_DOTS)))
-$(info $(SCREEN_SEQUENCE_PNGS))
 
 all: built/ $(PNGS) $(PDFS)
 
@@ -16,15 +14,13 @@ built/schema_diagram.png:
 built/schema_graph.png:
 	sqlt-graph -o built/schema_graph.png --from PostgreSQL db_schema.sql 
 
-built/%.png: %.dot
-	mkdir -p built
+built/%.png: %.dot 
 	dot -Tpng -o $@ $<
 
-built/%.png: screen_sequence_diagrams/%.dot
-	mkdir -p built
+built/%.png: screen_sequence_diagrams/%.dot 
 	dot -Tpng -o $@ $<
 
-built/screen_sequence_diagram.pdf: $(SCREEN_SEQUENCE_PNGS)
+built/screen_sequence_diagram.pdf: built/ $(SCREEN_SEQUENCE_PNGS)
 	convert $(SCREEN_SEQUENCE_PNGS) built/screen_sequence_diagram.pdf
 
 built/%.pdf: %.tex