1 files changed, 7 insertions, 5 deletions

diff --git a/xs_url.h b/xs_url.h
index 56d6d9d..e25c73b 100644
--- a/xs_url.h
+++ b/xs_url.h
@@ -312,12 +312,14 @@ xs_dict *xs_multipart_form_data(const char *payload, int p_size, const char *hea
         }
         else {
             /* regular variable; just copy */
-            xs *vc = xs_realloc(NULL, ps + 1);
-            memcpy(vc, payload + po, ps);
-            vc[ps] = '\0';
+            if (ps > 0) {
+                xs *vc = xs_realloc(NULL, ps + 1);
+                memcpy(vc, payload + po, ps);
+                vc[ps] = '\0';
 
-            if (xs_is_string(vn) && xs_is_string(vc))
-                p_vars = xs_dict_append(p_vars, vn, vc);
+                if (xs_is_string(vn) && xs_is_string(vc))
+                    p_vars = xs_dict_append(p_vars, vn, vc);
+            }
         }
 
         /* move on */