diff --git a/libs/ldns/configure.ac b/libs/ldns/configure.ac
index 534a4efef2..d4aa2b030e 100644
--- a/libs/ldns/configure.ac
+++ b/libs/ldns/configure.ac
@@ -486,4 +486,3 @@ AC_OUTPUT
 COPY_HEADER_FILES(ldns/, ldns/)
 
 AC_CONFIG_SUBDIRS([drill])
-AC_REQUIRE_AUX_FILE([install-sh])