diff --git a/install.sh b/install.sh
index 8623a8e..ca6abf2 100755
--- a/install.sh
+++ b/install.sh
@@ -276,7 +276,7 @@ installNotImportantPackages() {
     calcHeightAndRun "whiptail --msgbox \"Now, we will install a few more packages (in the background). Press OK and wait (it may take some time).\" HEIGHT 60 3>&1 1>&2 2>&3"
     checkForParu
     getThePackages "N" "installNotImportantPackages"
-    runInChroot "sed -i 's/%wheel ALL=(ALL) NOPASSWD: ALL/# %wheel ALL=(ALL) NOPASSWD: ALL/' /etc/sudoers"
+    runInChroot "sed -i 's/^%wheel ALL=(ALL) NOPASSWD: ALL/# %wheel ALL=(ALL) NOPASSWD: ALL/' /etc/sudoers"
 }
 
 finishInstallation() {