diff --git a/ci/test-documentation.sh b/ci/test-documentation.sh
index bf23b2caea..58962d668a 100755
--- a/ci/test-documentation.sh
+++ b/ci/test-documentation.sh
@@ -9,7 +9,7 @@ make check-builtins
 make check-docs
 
 # Build docs with AsciiDoc
-make doc
+make --jobs=2 doc
 test -s Documentation/git.html
 test -s Documentation/git.xml
 test -s Documentation/git.1
@@ -17,6 +17,6 @@ grep '<meta name="generator" content="AsciiDoc ' Documentation/git.html
 
 # Build docs with AsciiDoctor
 make clean
-make USE_ASCIIDOCTOR=1 doc
+make --jobs=2 USE_ASCIIDOCTOR=1 doc
 test -s Documentation/git.html
 grep '<meta name="generator" content="Asciidoctor ' Documentation/git.html