diff --git a/Makefile b/Makefile
index 0565a10..a0dc83c 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,9 @@
 COPY_PDF=$(shell find . -name '*.pdf' -not -path './build/*')
 COPY_TARGETS=$(COPY_PDF:%.pdf=build/%.pdf)
 
+COPY_JPG=$(shell find . -name '*.jpg' -not -path './build/*')
+COPY_TARGETS_JPG=$(COPY_JPG:%.jpg=build/%.jpg)
+
 MD_SOURCES=$(shell find . -name '*.md' -not -path "./templates/*")
 HTML_TARGETS=$(MD_SOURCES:%.md=build/%.html)
 PDF_TARGETS=$(MD_SOURCES:%.md=build/%.pdf)
@@ -17,7 +20,7 @@ COMPRESS_TARGETS=$(HTML_TARGETS:%=%.gz)
 COMPRESS_TARGETS+=$(PDF_TARGETS:%=%.gz)
 COMPRESS_TARGETS+=$(TEX_TARGETS:%=%.gz)
 
-default: $(DOT_TARGETS) $(HTML_TARGETS) $(PDF_TARGETS) $(TEX_TARGETS) $(COPY_TARGETS)
+default: $(DOT_TARGETS) $(HTML_TARGETS) $(PDF_TARGETS) $(TEX_TARGETS) $(COPY_TARGETS) $(COPY_TARGETS_JPG)
 
 compress: default $(COMPRESS_TARGETS)
 
@@ -35,7 +38,7 @@ build/%.png: %.dot
 
 build/%.pdf: %.tex
 	@mkdir -p $$(dirname $@)
-	latexmk -pdf -outdir=$$(dirname $@) $<
+	latexmk -shell-escape -pdf -outdir=$$(dirname $@) $<
 
 %.gz: %
 		gzip -k -f -9 $<
@@ -44,5 +47,9 @@ build/%.pdf: %.pdf
 	@mkdir -p $$(dirname $@)
 	cp $< $@
 
+build/%.jpg: %.jpg
+	@mkdir -p $$(dirname $@)
+	cp $< $@
+
 clean:
 	rm -r build