diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5c45514..ab1afb9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## 3.7.7.dev
+* Fix: free-busy REPORT always failed with HTTP 400 ("FREEBUSY occurrences limit of 0 hit") when [reporting] max_freebusy_occurrence is set to 0 (limit disabled), because the limit check did not honor the disabled limit
 * Fix: time-range filter treated a VEVENT with a whole-day DURATION (e.g. P1D, P2D) as zero-length (timedelta.seconds instead of total_seconds), so such events were missing from calendar-query REPORT results
 * Fix: calendar-data expand (REPORT) left recurrence properties (e.g. RDATE) on the expanded single-occurrence VEVENTs; a single try/except around the sequential delattr() calls stopped at the first absent property (e.g. missing EXDATE), so later ones were never removed
 * Fix: text-match filter on a structured property (e.g. vCard N or ADR) crashed with HTTP 500 (AttributeError: 'Name'/'Address' object has no attribute 'lower') because vobject parses these into non-string objects; their text representation is now used
diff --git a/radicale/app/report.py b/radicale/app/report.py
index dd41e8bb..fab2e445 100644
--- a/radicale/app/report.py
+++ b/radicale/app/report.py
@@ -133,7 +133,7 @@ def free_busy_report(base_prefix: str, path: str, xml_request: Optional[ET.Eleme
                                                       time_range_element,
                                                       "VEVENT",
                                                       n=n_occurrences)
-        if len(occurrences) >= max_occurrence:
+        if max_occurrence > 0 and len(occurrences) >= max_occurrence:
             raise ValueError("FREEBUSY occurrences limit of {} hit"
                              .format(max_occurrence))
 
diff --git a/radicale/tests/test_base.py b/radicale/tests/test_base.py
index effa0d1e..47f4ee2d 100644
--- a/radicale/tests/test_base.py
+++ b/radicale/tests/test_base.py
@@ -2232,6 +2232,18 @@ permissions: RrWw""")
     <C:time-range start="20130901T140000Z" end="20130908T220000Z"/>
 </C:free-busy-query>""", 400, is_xml=False)
 
+        # Test max_freebusy_occurrence set to 0 (limit disabled)
+        self.configure({"reporting": {"max_freebusy_occurrence": 0}})
+        code, responses = self.report(calendar_path, """\
+<?xml version="1.0" encoding="utf-8" ?>
+<C:free-busy-query xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <C:time-range start="20130901T140000Z" end="20130908T220000Z"/>
+</C:free-busy-query>""", 200, is_xml=False)
+        assert len(responses) == 1
+        vcalendar = list(responses.values())[0]
+        assert isinstance(vcalendar, vobject.base.Component)
+        assert len(vcalendar.vfreebusy_list) == 3
+
     def _report_sync_token(
             self, calendar_path: str, sync_token: Optional[str] = None, **kwargs
             ) -> Tuple[str, RESPONSES]: