diff --git a/library/error.c b/library/error.c
index c42642467..63cabb1f9 100644
--- a/library/error.c
+++ b/library/error.c
@@ -440,7 +440,7 @@ void mbedtls_strerror( int ret, char *buf, size_t buflen )
         if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) )
             mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" );
         if( use_ret == -(MBEDTLS_ERR_SSL_CONTINUE_PROCESSING) )
-            mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signalling that further message-processing should be done" );
+            mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that further message-processing should be done" );
 #endif /* MBEDTLS_SSL_TLS_C */
 
 #if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)