diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 4e79f74..6116f45 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -255,6 +255,11 @@
 		num_extensions++;
 		}
 
+	if (num_extensions == 0)
+		{
+		return 1;
+		}
+
 	extension_types = (uint16_t*)OPENSSL_malloc(sizeof(uint16_t) * num_extensions);
 	if (extension_types == NULL)
 		{