diff --git a/acinclude.m4.in b/acinclude.m4.in
index 29151a2..f822fcc 100644
--- a/acinclude.m4.in
+++ b/acinclude.m4.in
@@ -2327,7 +2327,7 @@ if test $kde_qtver = 4; then
    AC_SUBST(LIB_TDEUTILS, "-ltdeutils")
    AC_SUBST(LIB_TDEPIM, "-ltdepim")
    AC_SUBST(LIB_TDEIMPROXY, "-ltdeimproxy")
-   AC_SUBST(LIB_KNEWSTUFF, "-lknewstuff")
+   AC_SUBST(LIB_TDENEWSTUFF, "-ltdenewstuff")
    AC_SUBST(LIB_TDEDNSSD, "-ltdednssd")
    AC_SUBST(LIB_TDEUNITTEST, "-ltdeunittest")
 # these are for backward compatibility
@@ -2353,7 +2353,7 @@ elif test $kde_qtver = 3; then
    AC_SUBST(LIB_TDEUTILS, "-ltdeutils")
    AC_SUBST(LIB_TDEPIM, "-ltdepim")
    AC_SUBST(LIB_TDEIMPROXY, "-ltdeimproxy")
-   AC_SUBST(LIB_KNEWSTUFF, "-lknewstuff")
+   AC_SUBST(LIB_TDENEWSTUFF, "-ltdenewstuff")
    AC_SUBST(LIB_TDEDNSSD, "-ltdednssd")
    AC_SUBST(LIB_TDEUNITTEST, "-ltdeunittest")
 # these are for backward compatibility