diff --git a/documentation/Makefile b/documentation/Makefile
index 07801cc2d3..3cc9f11ee0 100644
--- a/documentation/Makefile
+++ b/documentation/Makefile
@@ -68,7 +68,7 @@ epub: $(PNGs)
 #   Unable to read an entire line---bufsize=200000. Please increase buf_size in texmf.cnf.
 latexpdf: $(PDFs)
 	$(SOURCEDIR)/set_versions.py
-	buf_size=10000000 $(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+	buf_size=10000000 LATEXMKOPTS="-silent" $(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 
 all: html epub latexpdf