diff --git a/cmake/modules/FindQalculate.cmake b/cmake/modules/FindQalculate.cmake
index dac26f0..1655f90 100644
--- a/cmake/modules/FindQalculate.cmake
+++ b/cmake/modules/FindQalculate.cmake
@@ -1,74 +1,79 @@
 # - Try to find libqalculate
 # Input variables
 #
 #  QALCULATE_MIN_VERSION - minimal version of libqalculate
 #  QALCULATE_FIND_REQUIRED - fail if can't find libqalculate
 #
 # Once done this will define
 #
 #  QALCULATE_FOUND - system has libqalculate
 #  QALCULATE_CFLAGS - libqalculate cflags
 #  QALCULATE_LIBRARIES - libqalculate libraries
 #
 # Copyright (c) 2007, Vladimir Kuznetsov, <ks.vladimir@gmail.com>
 #
 # Redistribution and use is allowed according to the terms of the BSD license.
 # For details see the accompanying COPYING-CMAKE-SCRIPTS file.
 
 if(QALCULATE_CFLAGS AND QALCULATE_LIBRARIES)
 
   # in cache already
   set(QALCULATE_FOUND TRUE)
 
 else(QALCULATE_CFLAGS AND QALCULATE_LIBRARIES)
   if(NOT WIN32)
     include(FindPkgConfig)
 
     if(QALCULATE_MIN_VERSION)
       pkg_check_modules(_pc_QALCULATE libqalculate>=${QALCULATE_MIN_VERSION})
     else(QALCULATE_MIN_VERSION)
       pkg_check_modules(_pc_QALCULATE libqalculate)
     endif(QALCULATE_MIN_VERSION)
 
-    pkg_check_modules(_pc_CLN cln)
-
     if(_pc_QALCULATE_FOUND)
+      if(${_pc_QALCULATE_VERSION} VERSION_LESS 2.0.0)
+        pkg_check_modules(_pc_CLN cln)
+      endif()
       set(QALCULATE_CFLAGS ${_pc_QALCULATE_CFLAGS})
     endif(_pc_QALCULATE_FOUND)
 
     find_library(QALCULATE_LIBRARIES
       NAMES
       qalculate
       PATHS
       ${_pc_QALCULATE_LIBRARY_DIRS}
       ${LIB_INSTALL_DIR}
     )
 
     find_path(QALCULATE_INCLUDE_DIR
       NAMES
       libqalculate
       PATHS
       ${_pc_QALCULATE_INCLUDE_DIRS}
       ${INCLUDE_INSTALL_DIR}
     )
 
-    find_library(CLN_LIBRARIES
-      NAMES
-      cln
-      PATHS
-      ${_pc_CLN_LIBRARY_DIRS}
-      ${LIB_INSTALL_DIR}
-    )
+    if(_pc_QALCULATE_FOUND)
+      if(${_pc_QALCULATE_VERSION} VERSION_LESS 2.0.0)
+        find_library(CLN_LIBRARIES
+          NAMES
+          cln
+          PATHS
+          ${_pc_CLN_LIBRARY_DIRS}
+          ${LIB_INSTALL_DIR}
+        )
+      endif()
+    endif()
 
   else(NOT WIN32)
     # XXX: currently no libqalculate on windows
     set(QALCULATE_FOUND FALSE)
 
   endif(NOT WIN32)
 
   include(FindPackageHandleStandardArgs)
   FIND_PACKAGE_HANDLE_STANDARD_ARGS(Qalculate DEFAULT_MSG QALCULATE_LIBRARIES )
 
   mark_as_advanced(QALCULATE_CFLAGS QALCULATE_LIBRARIES)
 
 endif(QALCULATE_CFLAGS AND QALCULATE_LIBRARIES)