diff --git a/tf-psa-crypto/tests/suites/test_suite_psa_crypto_entropy.function b/tf-psa-crypto/tests/suites/test_suite_psa_crypto_entropy.function
index 24081638d..4d5eda2ba 100644
--- a/tf-psa-crypto/tests/suites/test_suite_psa_crypto_entropy.function
+++ b/tf-psa-crypto/tests/suites/test_suite_psa_crypto_entropy.function
@@ -8,10 +8,6 @@
 #include "entropy_poll.h"
 
 /* Calculating the minimum allowed entropy size in bytes */
-#if !defined(MBEDTLS_ENTROPY_BLOCK_SIZE)
-#define MBEDTLS_ENTROPY_BLOCK_SIZE      MBEDTLS_ENTROPY_MIN_PLATFORM
-#endif
-
 #define MBEDTLS_PSA_INJECT_ENTROPY_MIN_SIZE MAX(MBEDTLS_ENTROPY_MIN_PLATFORM, \
                                                 MBEDTLS_ENTROPY_BLOCK_SIZE)
 
diff --git a/tf-psa-crypto/tests/suites/test_suite_psa_crypto_init.function b/tf-psa-crypto/tests/suites/test_suite_psa_crypto_init.function
index c9a1e077d..954560a24 100644
--- a/tf-psa-crypto/tests/suites/test_suite_psa_crypto_init.function
+++ b/tf-psa-crypto/tests/suites/test_suite_psa_crypto_init.function
@@ -24,9 +24,6 @@ static int check_stats(void)
 exit:
     return 0;
 }
-#if !defined(MBEDTLS_ENTROPY_BLOCK_SIZE)
-#define MBEDTLS_ENTROPY_BLOCK_SIZE  MBEDTLS_ENTROPY_MIN_PLATFORM
-#endif
 
 #define ENTROPY_MIN_NV_SEED_SIZE                                        \
     MAX(MBEDTLS_ENTROPY_MIN_PLATFORM, MBEDTLS_ENTROPY_BLOCK_SIZE)