diff --git a/library/pem.c b/library/pem.c
index 77ce3a6..510a7a4 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -51,7 +51,7 @@
     memset( ctx, 0, sizeof( mbedtls_pem_context ) );
 }
 
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
     ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
 /*
  * Read a 16-byte hex string and convert it to binary
@@ -339,7 +339,7 @@
 }
 #endif /* MBEDTLS_AES_C */
 
-#endif /* MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA && MBEDTLS_CIPHER_MODE_CBC &&
+#endif /* MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_CIPHER_MODE_CBC &&
           ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
 
 int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer,
@@ -350,14 +350,14 @@
     size_t len;
     unsigned char *buf;
     const unsigned char *s1, *s2, *end;
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
     ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
     unsigned char pem_iv[16];
     mbedtls_cipher_type_t enc_alg = MBEDTLS_CIPHER_NONE;
 #else
     ((void) pwd);
     ((void) pwdlen);
-#endif /* MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA && MBEDTLS_CIPHER_MODE_CBC &&
+#endif /* MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_CIPHER_MODE_CBC &&
           ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
 
     if( ctx == NULL )
@@ -390,7 +390,7 @@
 
     if( s2 - s1 >= 22 && memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 )
     {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
     ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
         enc++;
 
@@ -453,7 +453,7 @@
         else return( MBEDTLS_ERR_PEM_INVALID_DATA );
 #else
         return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
-#endif /* MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA && MBEDTLS_CIPHER_MODE_CBC &&
+#endif /* MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_CIPHER_MODE_CBC &&
           ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
     }
 
@@ -477,7 +477,7 @@
 
     if( enc != 0 )
     {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
+#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && defined(MBEDTLS_CIPHER_MODE_CBC) &&         \
     ( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
         if( pwd == NULL )
         {
@@ -526,7 +526,7 @@
         mbedtls_platform_zeroize( buf, len );
         mbedtls_free( buf );
         return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
-#endif /* MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA && MBEDTLS_CIPHER_MODE_CBC &&
+#endif /* MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_CIPHER_MODE_CBC &&
           ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
     }