diff --git a/configure.in b/configure.in
index f5196f2..d6f5010 100755
--- a/configure.in
+++ b/configure.in
@@ -103,8 +103,8 @@ AC_SS_FIND_QT
 
 AC_SS_HEADER([Checking KDE])
 
-SS_KDE_GENERAL_FILE_TO_SEARCH="include/twin.h"
-SS_KDE_INCLUDE_FILE_TO_SEARCH="twin.h"
+SS_KDE_GENERAL_FILE_TO_SEARCH="bin/tde-config"
+SS_KDE_INCLUDE_FILE_TO_SEARCH="tde-config"
 
 AC_SS_FIND_KDE