diff --git a/product/optee/common/module/console/CMakeLists.txt b/product/optee/common/module/console/CMakeLists.txt
index aebb7cc797667174980696bc8e0719154e04ce18..0e8001e3c4fc74216aa2d4b01c779735955de744 100644
--- a/product/optee/common/module/console/CMakeLists.txt
+++ b/product/optee/common/module/console/CMakeLists.txt
@@ -1,6 +1,6 @@
 #
 # Arm SCP/MCP Software
-# Copyright (c) 2022, Linaro Limited and Contributors. All rights reserved.
+# Copyright (c) 2022-2025, Linaro Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -14,7 +14,7 @@ target_include_directories(${SCP_MODULE_TARGET}
 # Those includes are needed for mutex definitnion that is used in optee_smt
 # notification
 target_include_directories(${SCP_MODULE_TARGET}
-                           PUBLIC "${SCP_OPTEE_DIR}/core/arch/arm/include/"
+                           PRIVATE "${SCP_OPTEE_DIR}/core/arch/arm/include/"
                                   "${SCP_OPTEE_DIR}/core/include/"
                                   "${SCP_OPTEE_DIR}/lib/libutils/ext/include/"
                                   "${SCP_OPTEE_DIR}/lib/libutee/include/")
diff --git a/product/optee/common/module/mbx/CMakeLists.txt b/product/optee/common/module/mbx/CMakeLists.txt
index 305fa42b7370a142aad9b697761b735b91a6fcf4..08fd57fc1cc405c50431028d43c1c81221d7ddf6 100644
--- a/product/optee/common/module/mbx/CMakeLists.txt
+++ b/product/optee/common/module/mbx/CMakeLists.txt
@@ -1,6 +1,6 @@
 #
 # Arm SCP/MCP Software
-# Copyright (c) 2022, Linaro Limited and Contributors. All rights reserved.
+# Copyright (c) 2022-2025, Linaro Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -15,7 +15,7 @@ target_include_directories(${SCP_MODULE_TARGET}
 # Those includes are needed for mutex defifitnion that is used in optee_smt
 # notification
 target_include_directories(${SCP_MODULE_TARGET}
-                           PUBLIC "${SCP_OPTEE_DIR}/core/include/"
+                           PRIVATE "${SCP_OPTEE_DIR}/core/include/"
                                   "${SCP_OPTEE_DIR}/lib/libutils/ext/include/"
                                   "${SCP_OPTEE_DIR}/lib/libutee/include/")