diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-nextcloud-mediadc-add-package/run b/root/etc/s6-overlay/s6-rc.d/init-mod-nextcloud-mediadc-add-package/run
index 6a9ebd6..832c312 100755
--- a/root/etc/s6-overlay/s6-rc.d/init-mod-nextcloud-mediadc-add-package/run
+++ b/root/etc/s6-overlay/s6-rc.d/init-mod-nextcloud-mediadc-add-package/run
@@ -1,7 +1,7 @@
 #!/usr/bin/with-contenv bash
 
-if ! pip list 2>&1 | grep -q "pillow_heif" || ! pip list 2>&1 | grep -q "hexhamming" || ! pip list 2>&1 | grep -q "pywavelets"; then
-    echo "**** Adding pillow_heif, hexhamming, pywavelets and their deps to package install lists ****"
+if ! pip list 2> /dev/null | grep -q "pillow-heif" || ! pip list 2> /dev/null | grep -q "hexhamming" || ! pip list 2> /dev/null | grep -q "PyWavelets"; then
+    echo "**** Adding pillow-heif, hexhamming, pywavelets and their deps to package install lists ****"
     echo "\
         ffmpeg \
         imagemagick \
@@ -15,7 +15,7 @@ if ! pip list 2>&1 | grep -q "pillow_heif" || ! pip list 2>&1 | grep -q "hexhamm
         py3-cryptography \
         py3-pip" >> /mod-repo-packages-to-install.list
     if [ $(arch) = "armv7l" ]; then
-        echo "**** Installing build deps for pillow_heif on arm32v7, compiling pillow_heif may take a long time in the next step ****"
+        echo "**** Installing build deps for pillow-heif on arm32v7, compiling pillow_heif may take a long time in the next step ****"
         echo "\
             python3-dev \
             libtool \
@@ -28,9 +28,9 @@ if ! pip list 2>&1 | grep -q "pillow_heif" || ! pip list 2>&1 | grep -q "hexhamm
             aom-dev" >> /mod-repo-packages-to-install.list
     fi
     echo "\
-        pillow_heif \
+        pillow-heif \
         hexhamming \
         pywavelets" >> /mod-pip-packages-to-install.list
 else
-    echo "**** pillow_heif, hexhamming and pywavelets already installed, skipping ****"
+    echo "**** pillow-heif, hexhamming and pywavelets already installed, skipping ****"
 fi