diff --git a/m4/ert.m4 b/m4/ert.m4
index c7843b6a..28067892 100644
--- a/m4/ert.m4
+++ b/m4/ert.m4
@@ -30,7 +30,7 @@ AS_IF([test x"${with_ert}" != x"no"],
 
   ERT_CPPFLAGS=
   ERT_LDFLAGS=
-  ERT_LIBS="-lecl -lgeometry -lutil -lpthread -lz -lgomp"
+  ERT_LIBS="-lecl -lgeometry -lert_util -lpthread -lz -lgomp"
   AS_IF([test x"${with_ert}" != x"yes"],
     [ERT_LDFLAGS="-L${with_ert}/lib"
      ERT_CPPFLAGS="-I${with_ert}/include"], [:])[]dnl