diff --git a/acinclude.m4 b/acinclude.m4
index 522e343..4d554cb 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -2070,7 +2070,7 @@ if test $kde_qtver = 3; then
    AC_SUBST(LIB_KDED, $lib_kded)
    AC_SUBST(LIB_TDECORE, "-ltdecore")
    AC_SUBST(LIB_TDEUI, "-ltdeui")
-   AC_SUBST(LIB_KIO, "-lkio")
+   AC_SUBST(LIB_KIO, "-ltdeio")
    AC_SUBST(LIB_KJS, "-lkjs")
    AC_SUBST(LIB_SMB, "-lsmb")
    AC_SUBST(LIB_KAB, "-lkab")
@@ -2086,12 +2086,12 @@ if test $kde_qtver = 3; then
    AC_SUBST(LIB_KDNSSD, "-ltdednssd")
    AC_SUBST(LIB_KUNITTEST, "-ltdeunittest")
 # these are for backward compatibility
-   AC_SUBST(LIB_KSYCOCA, "-lkio")
-   AC_SUBST(LIB_KFILE, "-lkio")
+   AC_SUBST(LIB_KSYCOCA, "-ltdeio")
+   AC_SUBST(LIB_KFILE, "-ltdeio")
 elif test $kde_qtver = 2; then
    AC_SUBST(LIB_TDECORE, "-ltdecore")
    AC_SUBST(LIB_TDEUI, "-ltdeui")
-   AC_SUBST(LIB_KIO, "-lkio")
+   AC_SUBST(LIB_KIO, "-ltdeio")
    AC_SUBST(LIB_KSYCOCA, "-ltdesycoca")
    AC_SUBST(LIB_SMB, "-lsmb")
    AC_SUBST(LIB_KFILE, "-ltdefile")