diff --git a/cmake/install.cmake b/cmake/install.cmake
index 1fcecc7..3deee99 100644
--- a/cmake/install.cmake
+++ b/cmake/install.cmake
@@ -8,9 +8,10 @@
 # Generate correct filename
 string(TOUPPER ${TFM_PLATFORM} TFM_PLATFORM_UPPERCASE)
 string(REGEX REPLACE "-" "_" TFM_PLATFORM_UPPERCASE_UNDERSCORE ${TFM_PLATFORM_UPPERCASE})
+string(REGEX REPLACE "^(\\.\\.([\\/\\\\]))+" "EXTERNAL\\2" TFM_PLATFORM_UPPERCASE_UNDERSCORE_NO_PARENT_DIR ${TFM_PLATFORM_UPPERCASE_UNDERSCORE})
 
 install(DIRECTORY ${CMAKE_BINARY_DIR}/bin/
-        DESTINATION ${CMAKE_BINARY_DIR}/install/outputs/${TFM_PLATFORM_UPPERCASE_UNDERSCORE}
+        DESTINATION ${CMAKE_BINARY_DIR}/install/outputs/${TFM_PLATFORM_UPPERCASE_UNDERSCORE_NO_PARENT_DIR}
 )
 
 set(INTERFACE_INC_DIR ${CMAKE_SOURCE_DIR}/interface/include)