diff --git a/src/parser_utils.c b/src/parser_utils.c
index 7481f2d..45e0304 100644
--- a/src/parser_utils.c
+++ b/src/parser_utils.c
@@ -1063,8 +1063,13 @@
 
    int len = strlen(p);
 
-   if(len + state->anamepos < SMALLBUFSIZE-2){
+   if(len + state->anamepos < SMALLBUFSIZE-3){
       memcpy(&(state->attachment_name_buf[state->anamepos]), p, len);
       state->anamepos += len;
+
+      // add a trailing separator semicolon to make sure there's separation
+      // with the next item
+      state->attachment_name_buf[state->anamepos] = ';';
+      state->anamepos++;
    }
 }