diff --git a/connectivity/mbedtls/platform/inc/platform_mbed.h b/connectivity/mbedtls/platform/inc/platform_mbed.h
index 66d52920ff..f830e734c9 100644
--- a/connectivity/mbedtls/platform/inc/platform_mbed.h
+++ b/connectivity/mbedtls/platform/inc/platform_mbed.h
@@ -21,7 +21,7 @@
 #ifndef __PLATFORM_MBED__H__
 #define __PLATFORM_MBED__H__
 
-#if (defined(FEATURE_PSA) && defined(MBEDTLS_ENTROPY_NV_SEED))
+#if (defined(FEATURE_EXPERIMENTAL_API) && defined(FEATURE_PSA) && defined(MBEDTLS_ENTROPY_NV_SEED))
 
 #include "default_random_seed.h"