diff --git a/tests/include/test/fake_external_rng_for_test.h b/tests/include/test/fake_external_rng_for_test.h
index f5aa86e92..330399908 100644
--- a/tests/include/test/fake_external_rng_for_test.h
+++ b/tests/include/test/fake_external_rng_for_test.h
@@ -41,16 +41,16 @@ void mbedtls_test_disable_insecure_external_rng(void);
 
 #include <mbedtls/platform.h>
 
-/* Force return value or entropy content in mbedtls_platform_get_entropy_alt()
+/* Force return value or entropy content in mbedtls_platform_get_entropy()
  * as follows:
  * - if fail == 0 && forced_entropy_content == 0 then
- *   mbedtls_platform_get_entropy_alt() behaves properly.
+ *   mbedtls_platform_get_entropy() behaves properly.
  * - if fail != 0 then MBEDTLS_ERR_ENTROPY_SOURCE_FAILED is returned.
  * - if forced_entropy_content != 0 then
  *      - return value is success (0) but
  *      - returned entropy_content will be equal to forced_entropy_content.
  */
-void mbedtls_test_get_entropy_alt_force(int fail, size_t forced_entropy_content);
+void mbedtls_test_get_entropy_force(int fail, size_t forced_entropy_content);
 
 #endif /* MBEDTLS_PLATFORM_GET_ENTROPY_ALT */
 
diff --git a/tests/src/fake_external_rng_for_test.c b/tests/src/fake_external_rng_for_test.c
index d766af164..f00cb07ba 100644
--- a/tests/src/fake_external_rng_for_test.c
+++ b/tests/src/fake_external_rng_for_test.c
@@ -2,7 +2,7 @@
  *
  * Helper functions to test external functions:
  * - mbedtls_psa_external_get_random()
- * - mbedtls_platform_get_entropy_alt()
+ * - mbedtls_platform_get_entropy()
  *
  * These functions are provided only for test purposes and they should not be
  * used for production.
@@ -59,14 +59,14 @@ psa_status_t mbedtls_psa_external_get_random(
 static int get_entropy_alt_force_failure = 0;
 static size_t get_entropy_alt_forced_entropy_content = 0;
 
-void mbedtls_test_get_entropy_alt_force(int fail, size_t forced_entropy_content)
+void mbedtls_test_get_entropy_force(int fail, size_t forced_entropy_content)
 {
     get_entropy_alt_force_failure = fail;
     get_entropy_alt_forced_entropy_content = forced_entropy_content;
 }
 
-int mbedtls_platform_get_entropy_alt(unsigned char *output, size_t output_size,
-                                     size_t *output_len, size_t *entropy_content)
+int mbedtls_platform_get_entropy(unsigned char *output, size_t output_size,
+                                 size_t *output_len, size_t *entropy_content)
 {
     if (get_entropy_alt_force_failure != 0) {
         return MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;