diff --git a/installation/scripts/install_tsk_from_src.sh b/installation/scripts/install_tsk_from_src.sh
index 9c577e09e8..cd9b9e4a0d 100644
--- a/installation/scripts/install_tsk_from_src.sh
+++ b/installation/scripts/install_tsk_from_src.sh
@@ -10,7 +10,7 @@ usage() {
 # default repo path
 REPO="https://github.com/sleuthkit/sleuthkit.git"
 
-while getopts "r:b:" o; do
+while getopts "p:r:b:" o; do
     case "${o}" in
     p)
         SLEUTHKIT_SRC_DIR=${OPTARG}