diff --git a/cmake/FindCMSIS.cmake b/cmake/FindCMSIS.cmake
index d6a1a7c2..8b9db26d 100644
--- a/cmake/FindCMSIS.cmake
+++ b/cmake/FindCMSIS.cmake
@@ -104,9 +104,11 @@ function(cmsis_generate_default_linker_script FAMILY DEVICE CORE)
                 -P "${STM32_CMAKE_DIR}/stm32/linker_ld.cmake"
         )
     endif()
-    add_custom_target(CMSIS_LD_${DEVICE}${CORE_U} DEPENDS "${OUTPUT_LD_FILE}")
-    add_dependencies(CMSIS::STM32::${DEVICE}${CORE_C} CMSIS_LD_${DEVICE}${CORE_U})
-    stm32_add_linker_script(CMSIS::STM32::${DEVICE}${CORE_C} INTERFACE "${OUTPUT_LD_FILE}")
+    if (NOT TARGET CMSIS_LD_${DEVICE}${CORE_U})
+        add_custom_target(CMSIS_LD_${DEVICE}${CORE_U} DEPENDS "${OUTPUT_LD_FILE}")
+        add_dependencies(CMSIS::STM32::${DEVICE}${CORE_C} CMSIS_LD_${DEVICE}${CORE_U})
+        stm32_add_linker_script(CMSIS::STM32::${DEVICE}${CORE_C} INTERFACE "${OUTPUT_LD_FILE}")
+    endif()
 endfunction() 
 
 foreach(COMP ${CMSIS_FIND_COMPONENTS_FAMILIES})