diff --git a/oni/home/services/environment.scm b/oni/home/services/environment.scm
index e89fbc4..b6d4aec 100644
--- a/oni/home/services/environment.scm
+++ b/oni/home/services/environment.scm
@@ -15,6 +15,8 @@
                      ("GUIX_LOCPATH" . "$HOME/.guix-home/profile/lib/locale")
                      ("XDG_DATA_DIRS" . "${XDG_DATA_DIRS}${XDG_DATA_DIRS:+:}/usr/local/share:/usr/share")
                      ("FILTER_BRANCH_SQUELCH_WARNING" . "1")
+                     ;; To allow my Emacs to accept remapped keys from Stumpwm.
+                     ("GDK_CORE_DEVICE_EVENTS" . "1")
                      ;; Temporary until I create services for them.
                      ("SUDO_ASKPASS" . "${HOME}/usr/bin/askpass-rofi")
                      ("SCSH_LIB_DIRS" . "${SCSH_LIB_DIRS} \"${HOME}/usr/share/scsh/\"")