diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 04f8c17..78f294f 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1093,7 +1093,7 @@
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
     /** Callback to customize X.509 certificate chain verification          */
     int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *);
-    void *p_vrfy;                   /*!< context for X.509 verify calllback */
+    void *p_vrfy;                   /*!< context for X.509 verify callback */
 #endif
 
     mbedtls_ssl_send_t *f_send; /*!< Callback for network send */