diff --git a/gnu/packages/package-management.scm b/gnu/packages/package-management.scm
index 4cc5b898a4..70a6a49921 100644
--- a/gnu/packages/package-management.scm
+++ b/gnu/packages/package-management.scm
@@ -154,7 +154,7 @@ (define (copy arch)
                        ;; incompatible .go files as reported at
                        ;; <https://lists.gnu.org/archive/html/guix-devel/2016-03/msg01261.html>.
                        (wrap-program (string-append out "/bin/guix")
-                         `("GUILE_LOAD_PATH" ":" = (,path))
+                         `("GUILE_LOAD_PATH" ":" prefix (,path))
                          `("GUILE_LOAD_COMPILED_PATH" ":" = (,path)))
 
                        #t))))))