1 files changed, 1 insertions, 1 deletions
diff --git a/common.mk b/common.mk
index c3697093..0b2ba02a 100644
--- a/common.mk
+++ b/common.mk
@@ -22,7 +22,7 @@ sequence.pdf: sequence.md $(MAKEFILE_LIST)
 schedule.pdf: schedule.md $(MAKEFILE_LIST)
 	$(PANDOC) $< -f $(SCHEDULE_FORMAT) -o $@
 
-slides.pdf: slides.md $(wildcard img/*) $(MAKEFILE_LIST)
+slides%.pdf: slides%.md slides.md $(wildcard img/*) $(MAKEFILE_LIST)
 	$(PANDOC) $(SLIDES_OPTIONS) -f $(SLIDES_FORMAT) $< -o $@
 
 %.pdf: %.tex $(MAKEFILE_LIST)