diff --git a/configure.in.in b/configure.in.in
index 747ac83..4c8599d 100644
--- a/configure.in.in
+++ b/configure.in.in
@@ -1,5 +1,7 @@
 #MIN_CONFIG(3.2.0)
 
+KDE_ENABLE_HIDDEN_VISIBILITY
+
 AM_INIT_AUTOMAKE(ktechlab, 0.3)
 AC_C_BIGENDIAN
 AC_CHECK_KDEMAXPATHLEN