diff --git a/src/gam-install.sh b/src/gam-install.sh
index ff8509bc..c33c32ed 100755
--- a/src/gam-install.sh
+++ b/src/gam-install.sh
@@ -157,7 +157,7 @@ echo_yellow "Downloading file $name from $browser_download_url to $temp_archive_
 # Save archive to temp w/o losing our path
 (cd $temp_archive_dir && curl -O -L $browser_download_url)
 
-mkdir -p $target_dir
+mkdir -p "$target_dir"
 
 echo_yellow "Extracting archive to $target_dir"
 tar xf $temp_archive_dir/$name -C "$target_dir"
@@ -171,7 +171,7 @@ fi
 
 if [ "$upgrade_only" = true ]; then
   echo_green "Here's information about your GAM upgrade:"
-  $target_dir/gam/gam version
+  "$target_dir/gam/gam" version
   rc=$?
   if (( $rc != 0 )); then
     echo_red "ERROR: Failed running GAM for the first time with $rc. Please report this error to GAM mailing list. Exiting."
@@ -219,7 +219,7 @@ while true; do
       if [ "$adminuser" == "" ]; then
         read -p "Please enter your G Suite admin email address: " adminuser
       fi
-      $target_dir/gam/gam create project $adminuser
+      "$target_dir/gam/gam" create project $adminuser
       rc=$?
       if (( $rc == 0 )); then
         echo_green "Project creation complete."
@@ -244,7 +244,7 @@ while $project_created; do
   read -p "Are you ready to authorize GAM to perform G Suite management operations as your admin account? (yes or no) " yn
   case $yn in
     [Yy]*)
-      $target_dir/gam/gam oauth create $adminuser
+      "$target_dir/gam/gam" oauth create $adminuser
       rc=$?
       if (( $rc == 0 )); then
         echo_green "Admin authorization complete."
@@ -273,7 +273,7 @@ while $project_created; do
         read -p "Please enter the email address of a regular G Suite user: " regularuser
       fi
       echo_yellow "Great! Checking service account scopes.This will fail the first time. Follow the steps to authorize and retry. It can take a few minutes for scopes to PASS after they've been authorized in the admin console."
-      $target_dir/gam/gam user $adminuser check serviceaccount
+      "$target_dir/gam/gam" user $adminuser check serviceaccount
       rc=$?
       if (( $rc == 0 )); then
         echo_green "Service account authorization complete."
@@ -294,7 +294,7 @@ while $project_created; do
 done
 
 echo_green "Here's information about your new GAM installation:"
-$target_dir/gam/gam version
+"$target_dir/gam/gam" version
 rc=$?
 if (( $rc != 0 )); then
   echo_red "ERROR: Failed running GAM for the first time with $rc. Please report this error to GAM mailing list. Exiting."