diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 42fef69c3c..6847873e7b 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -190,14 +190,15 @@ def uri_replace(ud, uri_find, uri_replace, d):
                 else:
                     result_decoded[loc] = re.sub(i, uri_replace_decoded[loc], uri_decoded[loc])
                 if uri_find_decoded.index(i) == 2:
+                    basename = None
                     if ud.mirrortarball:
-                        if result_decoded[loc].endswith("/"):
-                            result_decoded[loc] = os.path.dirname(result_decoded[loc])
-                        result_decoded[loc] = os.path.join(result_decoded[loc], os.path.basename(ud.mirrortarball))
+                        basename = os.path.basename(ud.localpath)
                     elif ud.localpath:
-                        if result_decoded[loc].endswith("/"):
-                            result_decoded[loc] = os.path.dirname(result_decoded[loc])
-                        result_decoded[loc] = os.path.join(result_decoded[loc], os.path.basename(ud.localpath))
+                        basename = os.path.basename(ud.localpath)
+                    if basename and result_decoded[loc].endswith("/"):
+                        result_decoded[loc] = os.path.dirname(result_decoded[loc])
+                    if basename and not result_decoded[loc].endswith(basename):
+                        result_decoded[loc] = os.path.join(result_decoded[loc], basename)
             else:
                 return ud.url
     result = encodeurl(result_decoded)