diff --git a/entrypoint.sh b/entrypoint.sh
index eed9229..61b4396 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -37,7 +37,7 @@ until [ -S "/tmp/.X11-unix/X${DISPLAY/:/}" ]; do sleep 1; done
 echo "X socket is ready"
 
 # Resize the screen to the provided size
-bash -c "source /opt/gstreamer/gst-env && /usr/local/bin/selkies-gstreamer-resize ${SIZEW}x${SIZEH}"
+bash -c ". /opt/gstreamer/gst-env && /usr/local/bin/selkies-gstreamer-resize ${SIZEW}x${SIZEH}"
 
 # Run the x11vnc + noVNC fallback web interface if enabled
 if [ "${NOVNC_ENABLE,,}" = "true" ]; then
diff --git a/selkies-gstreamer-entrypoint.sh b/selkies-gstreamer-entrypoint.sh
index 7d5e772..1b306b9 100755
--- a/selkies-gstreamer-entrypoint.sh
+++ b/selkies-gstreamer-entrypoint.sh
@@ -5,7 +5,7 @@
 # file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
 # Source environment for GStreamer
-source /opt/gstreamer/gst-env
+. /opt/gstreamer/gst-env
 
 # Set default display
 export DISPLAY="${DISPLAY:-:0}"