diff --git a/src/unix/proctitle.c b/src/unix/proctitle.c
index 9160f7ea..2ed0b21c 100644
--- a/src/unix/proctitle.c
+++ b/src/unix/proctitle.c
@@ -98,7 +98,9 @@ int uv_get_process_title(char* buffer, size_t size) {
   else if (size <= process_title.len)
     return -ENOBUFS;
 
-  memcpy(buffer, process_title.str, process_title.len + 1);
+  if (process_title.len != 0)
+    memcpy(buffer, process_title.str, process_title.len + 1);
+
   buffer[process_title.len] = '\0';
 
   return 0;