diff --git a/scripts/obs/lib/__init__.py b/scripts/obs/lib/__init__.py
index 964b2983..9682b19c 100644
--- a/scripts/obs/lib/__init__.py
+++ b/scripts/obs/lib/__init__.py
@@ -63,6 +63,10 @@ def add_shared_arguments(parser):
     parser.add_argument("-v", "--verbose", action="store_true",
                         help="always print shell commands and their output,"
                              " instead of only printing them on error")
+    parser.add_argument("-e", "--version-append",
+                        help="add a string at the end of the version, e.g."
+                             " '~osmocom' for the wireshark package to"
+                             " indicate that it is the version from our repo")
 
 
 def set_cmds_verbose(new_val):
diff --git a/scripts/obs/lib/srcpkg.py b/scripts/obs/lib/srcpkg.py
index 5dbc862c..a58ae15d 100644
--- a/scripts/obs/lib/srcpkg.py
+++ b/scripts/obs/lib/srcpkg.py
@@ -136,15 +136,21 @@ def write_commit_txt(project):
 def build(project, gerrit_id=0):
     conflict_version = lib.args.conflict_version
     feed = lib.args.feed
+    version_append = lib.args.version_append
+
     lib.git.clone(project)
     lib.git.clean(project)
     if gerrit_id > 0:
         lib.git.checkout_from_review(project, gerrit_id)
     else:
         checkout_for_feed(project)
+
     version = get_version_for_feed(project)
+    if version_append:
+        version += version_append
     epoch = get_epoch(project)
     version_epoch = f"{epoch}:{version}" if epoch else version
+
     has_rpm_spec = lib.rpm_spec.get_spec_in_path(project) is not None
 
     print(f"{project}: building source package {version_epoch}")