1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/x509/x509_txt.c b/src/lib/libcrypto/x509/x509_txt.c
index 4f83db8ba2..9d09ae17e8 100644
--- a/src/lib/libcrypto/x509/x509_txt.c
+++ b/src/lib/libcrypto/x509/x509_txt.c
@@ -148,7 +148,7 @@ const char *X509_verify_cert_error_string(long n)
                 return("unhandled critical extension");
 
         default:
-                sprintf(buf,"error number %ld",n);
+                snprintf(buf,sizeof buf,"error number %ld",n);
                 return(buf);
                 }
         }