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-rw-r--r--gnu/system.scm5
1 files changed, 5 insertions, 0 deletions
diff --git a/gnu/system.scm b/gnu/system.scm
index 8e05254b33..a4259fb61b 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -560,6 +560,11 @@ use 'plain-file' instead~%")
     ("SSL_CERT_DIR" . "/etc/ssl/certs")
     ("SSL_CERT_FILE" . "/etc/ssl/certs/ca-certificates.crt")
     ("GIT_SSL_CAINFO" . "/etc/ssl/certs/ca-certificates.crt")
+
+    ;; 'GTK_DATA_PREFIX' must name one directory where GTK+ themes are
+    ;; searched for.
+    ("GTK_DATA_PREFIX" . "/run/current-system/profile")
+
     ;; By default, applications that use D-Bus, such as Emacs, abort at startup
     ;; when /etc/machine-id is missing.  Make sure these warnings are non-fatal.
     ("DBUS_FATAL_WARNINGS" . "0")))