diff --git a/Installation/CMakeLists.txt b/Installation/CMakeLists.txt
index 73386fe866f..dff9443245f 100644
--- a/Installation/CMakeLists.txt
+++ b/Installation/CMakeLists.txt
@@ -864,8 +864,10 @@ endif()
 if(NOT CGAL_HEADER_ONLY)
   create_CGALconfig_files()
 else()
-  configure_file("${CGAL_MODULES_DIR}/CGALConfig_binary_header_only.cmake.in"
-    "${CMAKE_BINARY_DIR}/CGALConfig.cmake"  @ONLY)
+  if(NOT EXISTS "${CMAKE_BINARY_DIR}/CGALConfig.cmake")
+    configure_file("${CGAL_MODULES_DIR}/CGALConfig_binary_header_only.cmake.in"
+      "${CMAKE_BINARY_DIR}/CGALConfig.cmake"  @ONLY)
+  endif()
 endif()
 
 #--------------------------------------------------------------------------------------------------
diff --git a/Installation/src/CMakeLists.txt b/Installation/src/CMakeLists.txt
index d201c9ebcb0..caf995799b3 100644
--- a/Installation/src/CMakeLists.txt
+++ b/Installation/src/CMakeLists.txt
@@ -135,7 +135,9 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CGAL_RUNTIME_DIR})
 
 # TODO: Seems useless, because it is called again in ../CMakeLists.txt
 #       Should probably be removed. -- Laurent Rineau, 2014/07/22
-create_CGALconfig_files()
+if(NOT CGAL_HEADER_ONLY)
+  create_CGALconfig_files()
+endif()
 
 set(CGAL_DIR ${CMAKE_BINARY_DIR})