diff --git a/ports-of-callConfig.cmake.in b/ports-of-callConfig.cmake.in
index fada53fe..1265d426 100644
--- a/ports-of-callConfig.cmake.in
+++ b/ports-of-callConfig.cmake.in
@@ -5,6 +5,8 @@
 
 @PACKAGE_INIT@
 
-include("${CMAKE_CURRENT_LIST_DIR}/@POCLIB@Targets.cmake")
+if(NOT TARGET @POCLIB@ AND NOT @POCLIB@_BINARY_DIR)
+  include("${CMAKE_CURRENT_LIST_DIR}/@POCLIB@Targets.cmake")
+endif()
 
 check_required_components(@POCLIB@)