diff --git a/src/urlglob.c b/src/urlglob.c
index 64d700783..018f0e41d 100644
--- a/src/urlglob.c
+++ b/src/urlglob.c
@@ -314,7 +314,7 @@ int glob_url(URLGlob** glob, char* url, int *urlnum, FILE *error)
   if(NULL == glob_buffer)
     return CURLE_OUT_OF_MEMORY;
 
-  glob_expand = (URLGlob*)malloc(sizeof(URLGlob));
+  glob_expand = (URLGlob*)calloc(sizeof(URLGlob), 1);
   if(NULL == glob_expand) {
     free(glob_buffer);
     return CURLE_OUT_OF_MEMORY;