diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 962d3db..28cdb43 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -547,6 +547,11 @@
 #error "MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C defined, but not all prerequisites"
 #endif
 
+#if defined(MBEDTLS_PSA_ITS_FILE_C) && \
+    !defined(MBEDTLS_FS_IO)
+#error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites"
+#endif
+
 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) ||         \
     !defined(MBEDTLS_OID_C) )
 #error "MBEDTLS_RSA_C defined, but not all prerequisites"
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 7f96e50..8aec292 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -2795,6 +2795,18 @@
 //#define MBEDTLS_PSA_CRYPTO_STORAGE_ITS_C
 
 /**
+ * \def MBEDTLS_PSA_ITS_FILE_C
+ *
+ * Enable the emulation of the Platform Security Architecture
+ * Internal Trusted Storage (PSA ITS) over files.
+ *
+ * Module:  library/psa_its_file.c
+ *
+ * Requires: MBEDTLS_FS_IO
+ */
+#define MBEDTLS_PSA_ITS_FILE_C
+
+/**
  * \def MBEDTLS_RIPEMD160_C
  *
  * Enable the RIPEMD-160 hash algorithm.