diff --git a/include/mbedtls/pem.h b/include/mbedtls/pem.h
index f826abd..8a5ed90 100644
--- a/include/mbedtls/pem.h
+++ b/include/mbedtls/pem.h
@@ -34,7 +34,7 @@
  */
 #define MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT          -0x1080  /**< No PEM header or footer found. */
 #define MBEDTLS_ERR_PEM_INVALID_DATA                      -0x1100  /**< PEM string is not as expected. */
-#define MBEDTLS_ERR_PEM_MALLOC_FAILED                     -0x1180  /**< Failed to allocate memory. */
+#define MBEDTLS_ERR_PEM_ALLOC_FAILED                      -0x1180  /**< Failed to allocate memory. */
 #define MBEDTLS_ERR_PEM_INVALID_ENC_IV                    -0x1200  /**< RSA IV is not in hex-format. */
 #define MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG                   -0x1280  /**< Unsupported key encryption algorithm. */
 #define MBEDTLS_ERR_PEM_PASSWORD_REQUIRED                 -0x1300  /**< Private key password can't be empty. */