diff --git a/pype/plugins/global/publish/integrate_new.py b/pype/plugins/global/publish/integrate_new.py
index 133b4fc6ef..d52fede0bd 100644
--- a/pype/plugins/global/publish/integrate_new.py
+++ b/pype/plugins/global/publish/integrate_new.py
@@ -329,6 +329,17 @@ class IntegrateAssetNew(pyblish.api.InstancePlugin):
             if repre.get("outputName"):
                 template_data["output"] = repre['outputName']
 
+            ext = repre["ext"]
+            if ext.startswith("."):
+                self.log.warning((
+                    "Implementaion warning: <\"{}\">"
+                    " Representation's extension stored under \"ext\" key "
+                    " started with dot (\"{}\")."
+                ).format(repre["name"], ext))
+                ext = ext[1:]
+            repre["ext"] = ext
+            template_data["ext"] = ext
+
             template = os.path.normpath(
                 anatomy.templates[template_name]["path"])
 
diff --git a/pype/plugins/global/publish/integrate_thumbnail.py b/pype/plugins/global/publish/integrate_thumbnail.py
index 97122d2c39..23d2da5f4b 100644
--- a/pype/plugins/global/publish/integrate_thumbnail.py
+++ b/pype/plugins/global/publish/integrate_thumbnail.py
@@ -95,7 +95,7 @@ class IntegrateThumbnails(pyblish.api.InstancePlugin):
         template_data.update({
             "_id": str(thumbnail_id),
             "thumbnail_root": os.environ.get("AVALON_THUMBNAIL_ROOT"),
-            "ext": file_extension,
+            "ext": file_extension[1:],
             "thumbnail_type": "thumbnail"
         })
 
diff --git a/pype/plugins/standalonepublisher/publish/collect_context.py b/pype/plugins/standalonepublisher/publish/collect_context.py
index 3ef197fa1a..cd7246c0a2 100644
--- a/pype/plugins/standalonepublisher/publish/collect_context.py
+++ b/pype/plugins/standalonepublisher/publish/collect_context.py
@@ -145,12 +145,16 @@ class CollectContextDataSAPublish(pyblish.api.ContextPlugin):
             component["stagingDir"] = component["stagingDir"]
 
             if isinstance(component["files"], list):
-                collections, remainder = clique.assemble(component["files"])
+                collections, _remainder = clique.assemble(component["files"])
                 self.log.debug("collecting sequence: {}".format(collections))
                 instance.data["frameStart"] = int(component["frameStart"])
                 instance.data["frameEnd"] = int(component["frameEnd"])
                 instance.data["fps"] = int(component["fps"])
 
+            ext = component["ext"]
+            if ext.startswith("."):
+                component["ext"] = ext[1:]
+
             if component["preview"]:
                 instance.data["families"].append("review")
                 instance.data["repreProfiles"] = ["h264"]