diff --git a/tdefx/CMakeLists.txt b/tdefx/CMakeLists.txt
index ecf0a8d9d..721529d0e 100644
--- a/tdefx/CMakeLists.txt
+++ b/tdefx/CMakeLists.txt
@@ -43,6 +43,6 @@ set( ${target}_SRCS
 tde_add_library( ${target} SHARED AUTOMOC
   SOURCES ${${target}_SRCS}
   VERSION 14.0.0
-  LINK ${TQT_LIBRARIES} ${XRENDER_LIBRARIES}
+  LINK ${TQT_LIBRARIES} ${XRENDER_LIBRARIES} c
   DESTINATION ${LIB_INSTALL_DIR}
 )