diff --git a/tests/include/test/psa_crypto_helpers.h b/tests/include/test/psa_crypto_helpers.h
index a280331..9ba7dbc 100644
--- a/tests/include/test/psa_crypto_helpers.h
+++ b/tests/include/test/psa_crypto_helpers.h
@@ -243,7 +243,7 @@
 
 /** Parse binary string and convert it to a long integer
  */
-uint64_t parse_binary_string(data_t *bin_string);
+uint64_t mbedtls_test_parse_binary_string(data_t *bin_string);
 
 /** Skip a test case if the given key is a 192 bits AES key and the AES
  *  implementation is at least partially provided by an accelerator or
diff --git a/tests/src/psa_crypto_helpers.c b/tests/src/psa_crypto_helpers.c
index 18eac06..52ff031 100644
--- a/tests/src/psa_crypto_helpers.c
+++ b/tests/src/psa_crypto_helpers.c
@@ -149,7 +149,7 @@
     }
 }
 
-uint64_t parse_binary_string(data_t *bin_string)
+uint64_t mbedtls_test_parse_binary_string(data_t *bin_string)
 {
     uint64_t result = 0;
     TEST_LE_U(bin_string->len, 8);
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index d1ae15b..e558d98 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -8463,7 +8463,7 @@
 void parse_binary_string_test(data_t *input, int output)
 {
     uint64_t value;
-    value = parse_binary_string(input);
+    value = mbedtls_test_parse_binary_string(input);
     TEST_EQUAL(value, output);
 }
 /* END_CASE */
@@ -8529,7 +8529,7 @@
             if (key_types[i] == INPUT_INTEGER) {
                 TEST_EQUAL(psa_key_derivation_input_integer(
                                &operation, steps[i],
-                               parse_binary_string(inputs[i])),
+                               mbedtls_test_parse_binary_string(inputs[i])),
                            expected_statuses[i]);
             } else {
                 TEST_EQUAL(psa_key_derivation_input_bytes(
@@ -8729,7 +8729,7 @@
             case PSA_KEY_DERIVATION_INPUT_COST:
                 TEST_EQUAL(psa_key_derivation_input_integer(
                                &operation, steps[i],
-                               parse_binary_string(inputs[i])),
+                               mbedtls_test_parse_binary_string(inputs[i])),
                            statuses[i]);
                 if (statuses[i] != PSA_SUCCESS) {
                     goto exit;