1 files changed, 1 insertions, 0 deletions
diff --git a/entities.c b/entities.c
index 07761171..0b418001 100644
--- a/entities.c
+++ b/entities.c
@@ -259,6 +259,7 @@ CHAR *xmlEncodeEntities(xmlDocPtr doc, const CHAR *input) {
     const CHAR *cur = input;
     CHAR *out = buffer;
 
+    if (input == NULL) return(NULL);
     if (buffer == NULL) {
         buffer_size = 1000;
         buffer = (CHAR *) malloc(buffer_size * sizeof(CHAR));