diff --git a/atomfeedgen.py b/atomfeedgen.py
index 5176e9d..494549c 100755
--- a/atomfeedgen.py
+++ b/atomfeedgen.py
@@ -57,11 +57,19 @@ with open(CHANGELOGFILE) as fcl:
     changelogData = fcl.read()
 
 
-for cl in changelogData.split("\n\n"):
+for cl in changelogData.split("\n\n\n"):
 
     firstLine, changelog = cl.split("\n", maxsplit=1)
-    print(firstLine)
-    date, semVersion = firstLine.split("Version")
+    if firstLine.startswith("#Changelog"):
+        #preamble. skip
+        continue
+    # Format:## YYYY-MM-DD major.minor.patch
+    assert "##" in firstLine, firstLine
+    markdownTitle, date, semVersion = firstLine.split(" ")
+    assert markdownTitle == "##", markdownTitle
+    assert date.count("-") == 2, date
+    assert semVersion.count(".") == 2, semVersion
+    print(firstLine, "parsed as date:", date, "with version:", semVersion)
     semVersion  = semVersion.strip()
     isodate = datetime.fromisoformat(date.strip())
     isodate = isodate.replace(tzinfo=ZoneInfo("UTC"))