diff --git a/3rdparty/everest/CMakeLists.txt b/3rdparty/everest/CMakeLists.txt
index f105c894ef..ee7f0e4b9a 100644
--- a/3rdparty/everest/CMakeLists.txt
+++ b/3rdparty/everest/CMakeLists.txt
@@ -8,7 +8,7 @@ add_library(${everest_target}
 target_include_directories(${everest_target}
   PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
          $<BUILD_INTERFACE:${MBEDTLS_DIR}/include>
-         $<INSTALL_INTERFACE:include>
+         $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
   PRIVATE include/everest
           include/everest/kremlib
           ${MBEDTLS_DIR}/library/)
diff --git a/3rdparty/p256-m/CMakeLists.txt b/3rdparty/p256-m/CMakeLists.txt
index 884002e3c6..0e6c6d868b 100644
--- a/3rdparty/p256-m/CMakeLists.txt
+++ b/3rdparty/p256-m/CMakeLists.txt
@@ -8,7 +8,7 @@ target_include_directories(${p256m_target}
   PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
          $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/p256-m>
          $<BUILD_INTERFACE:${MBEDTLS_DIR}/include>
-         $<INSTALL_INTERFACE:include>
+         $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
   PRIVATE ${MBEDTLS_DIR}/library/)
 
 # Pass-through MBEDTLS_CONFIG_FILE and MBEDTLS_USER_CONFIG_FILE
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 48347938b2..479da96008 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -349,7 +349,7 @@ foreach(target IN LISTS target_libraries)
     # of /library (which currently means: under /3rdparty).
     target_include_directories(${target}
         PUBLIC $<BUILD_INTERFACE:${MBEDTLS_DIR}/include/>
-               $<INSTALL_INTERFACE:include/>
+               $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
         PRIVATE ${MBEDTLS_DIR}/library/
                 # Needed to include psa_crypto_driver_wrappers.h
                 ${CMAKE_CURRENT_BINARY_DIR})