diff --git a/config.h.cmake b/config.h.cmake
index 9d5298d4..ef56ac24 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -1,3 +1,6 @@
+// libkcal
+#cmakedefine USE_LIBICAL_0_46 1
+
 // kalarm
 #cmakedefine WITHOUT_ARTS 1
 
diff --git a/libkcal/ConfigureChecks.cmake b/libkcal/ConfigureChecks.cmake
index 90edc7f3..b4485ec3 100644
--- a/libkcal/ConfigureChecks.cmake
+++ b/libkcal/ConfigureChecks.cmake
@@ -9,7 +9,12 @@
 #
 #################################################
 
+# libical
 pkg_search_module( LIBICAL libical )
-if( NOT LIBICAL_FOUND )
+if( LIBICAL_FOUND )
+  if( NOT (LIBICAL_VERSION VERSION_LESS "0.46") )
+    set( USE_LIBICAL_0_46 1 CACHE INTERNAL "" FORCE )
+  endif( )
+else( )
   tde_message_fatal( "libical are required, but not found on your system" )
 endif()