diff --git a/gnu/packages/rdf.scm b/gnu/packages/rdf.scm
index 88d31038b40..ba66b8432b9 100644
--- a/gnu/packages/rdf.scm
+++ b/gnu/packages/rdf.scm
@@ -291,7 +291,8 @@ ideal (e.g. in LV2 implementations or embedded applications).")
           (lambda* (#:key outputs #:allow-other-keys)
             (setenv "LDFLAGS"
                     (string-append "-Wl,-rpath="
-                                   (assoc-ref outputs "out") "/lib")))))))
+                                   (assoc-ref outputs "out") "/lib"))
+            #t)))))
     (inputs
      `(("serd" ,serd)))
     (native-inputs