diff --git a/build.sh b/build.sh
index db249550491d6b506d3107e98481ed2ab28fcb16..2e6d2167b3efe2796a58548eb8fcedb0e28d11c9 100755
--- a/build.sh
+++ b/build.sh
@@ -72,7 +72,7 @@ EOF
 
 # Process command-line options. Remember the options for passing to the
 # containerized build script.
-while getopts :aAbd:ceEhiI:j:orstvfX: optchr; do
+while getopts :aAb:d:ceEhiI:j:orstvfX: optchr; do
   case "$optchr" in
     a)
       enable_autotuner="0"