diff --git a/migration/src/jira2github_import.py b/migration/src/jira2github_import.py
index 3974d6f..cbd7737 100644
--- a/migration/src/jira2github_import.py
+++ b/migration/src/jira2github_import.py
@@ -203,6 +203,13 @@
             else:
                 logger.error(f"Unknown Component: {c}")
         for label in jira_labels:
+            # GitHub does not allow commas in labels
+            label = label.replace(",","")
+            # several label texts have to be skipped; otherwise import fails. don't know why.
+            if label in ["queryparser", "fastvectorhighlighter", "highlighter", "Documentation", "Sort", "Highlighting", "Stemmer", "Scorer", "spatialrecursiveprefixtreefieldtype"] or \
+                label.startswith("java"):
+                logger.warning(f"Jira label '{label}' was skipped for {jira_id}. Please manually attach it from GitHub Web GUI.")
+                continue
             labels.append(f"legacy-jira-label:{label}")
         if resolution:
             labels.append(f"legacy-jira-resolution:{resolution}")