diff --git a/redshift/.config/X11/Xsession.d/redshift-gtk.sh b/redshift/.config/X11/Xsession.d/redshift-gtk.sh
index 72898b0..e52f763 100755
--- a/redshift/.config/X11/Xsession.d/redshift-gtk.sh
+++ b/redshift/.config/X11/Xsession.d/redshift-gtk.sh
@@ -1,3 +1,5 @@
 #!/usr/bin/env sh
 
-pgrep redshift-gtk || { redshift-gtk & }
+command -v redshift-gtk \
+    && (pgrep redshift-gtk \
+            || { redshift-gtk & })