diff --git a/CMakeLists.txt b/CMakeLists.txt
index c13794a38..1a36967ef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1808,10 +1808,12 @@ endif()
 
 ##### Uninstall target #####
 
-configure_file(
-    "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
-    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
-    IMMEDIATE @ONLY)
+if(NOT TARGET uninstall)
+  configure_file(
+      "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
+      "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
+      IMMEDIATE @ONLY)
 
-add_custom_target(uninstall
-    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+  add_custom_target(uninstall
+      COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
+endif()