diff --git a/gnu/packages/gstreamer.scm b/gnu/packages/gstreamer.scm
index 8ff8e6242b..8b01c9b04b 100644
--- a/gnu/packages/gstreamer.scm
+++ b/gnu/packages/gstreamer.scm
@@ -1076,7 +1076,7 @@ (define-public python-gst
        #:configure-flags
        (list (string-append
               "-Dpygi-overrides-dir="
-              (python:site-packages %build-inputs %outputs) "gi/overrides"))))
+              (python:site-packages %build-inputs %outputs) "/gi/overrides"))))
     (native-inputs
      (list pkg-config python))
     (propagated-inputs