diff --git a/make-includes/build_lecture_rules.make b/make-includes/build_lecture_rules.make
index cbeac4f..4c2082a 100755
--- a/make-includes/build_lecture_rules.make
+++ b/make-includes/build_lecture_rules.make
@@ -124,8 +124,8 @@
 slides: $(SLIDES_PREREQS)
 
 $(SLIDES).pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS) $(SLIDE_FILES)
-	pdflatex --jobname=$(SLIDES) '\documentclass[$(LATEX_OPTS)]{beamer}\input{$(SLIDES)}'
-	pdflatex --jobname=$(SLIDES) '\documentclass[$(LATEX_OPTS)]{beamer}\input{$(SLIDES)}'
+	pdflatex --jobname=$(SLIDES) '\documentclass[$(LATEX_OPTS)]{lectureslides}\input{$(SLIDES)}'
+	pdflatex --jobname=$(SLIDES) '\documentclass[$(LATEX_OPTS)]{lectureslides}\input{$(SLIDES)}'
 
 else
 
@@ -148,8 +148,8 @@
 slides-notes: slides-notes.pdf
 
 slides-notes.pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS) $(SLIDE_FILES)
-	pdflatex --jobname=slides-notes '\documentclass[$(LATEX_OPTS),notes=onlyslideswithnotes]{beamer}\input{$(SLIDES)}'
-	pdflatex --jobname=slides-notes '\documentclass[$(LATEX_OPTS),notes=onlyslideswithnotes]{beamer}\input{$(SLIDES)}'
+	pdflatex --jobname=slides-notes '\documentclass[$(LATEX_OPTS),notes=onlyslideswithnotes]{lectureslides}\input{$(SLIDES)}'
+	pdflatex --jobname=slides-notes '\documentclass[$(LATEX_OPTS),notes=onlyslideswithnotes]{lectureslides}\input{$(SLIDES)}'
 
 #
 # Build the slides with notes, 6-up.
@@ -192,8 +192,8 @@
 slides-combined: slides-combined.pdf
 
 slides-combined.pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS)
-	pdflatex --jobname=slides-combined '\documentclass[$(LATEX_OPTS),handout]{beamer}\input{$(SLIDES)}'
-	pdflatex --jobname=slides-combined '\documentclass[$(LATEX_OPTS),handout]{beamer}\input{$(SLIDES)}'
+	pdflatex --jobname=slides-combined '\documentclass[$(LATEX_OPTS),handout]{lectureslides}\input{$(SLIDES)}'
+	pdflatex --jobname=slides-combined '\documentclass[$(LATEX_OPTS),handout]{lectureslides}\input{$(SLIDES)}'
 
 #
 # Build the complete combined document.