diff --git a/python/tests/unit/collectors/test_references.py b/python/tests/unit/collectors/test_references.py
index 9ea5c83..dc66d97 100644
--- a/python/tests/unit/collectors/test_references.py
+++ b/python/tests/unit/collectors/test_references.py
@@ -1672,6 +1672,11 @@ class TestMath:
         assert text(md, links[0].text) == b"before"
         assert text(md, links[0].href) == b"href"
 
+    def test_no_math(self) -> None:
+        md = b"1.000$"
+        refs = collect(md)
+        assert len(refs) == 0
+
 
 # ---------------------------------------------------------------------------
 
diff --git a/python/zensical/collectors/references/cursor.py b/python/zensical/collectors/references/cursor.py
index b79f2cc..2240c33 100644
--- a/python/zensical/collectors/references/cursor.py
+++ b/python/zensical/collectors/references/cursor.py
@@ -1021,12 +1021,12 @@ def _scan_inline_code(cursor: Cursor) -> int | None:
 def _scan_math_inline(cursor: Cursor) -> int | None:
     """Scan for `$...$` math."""
     end = cursor.pos
-    if end >= cursor.end and cursor.data[end] != _DOLLAR:
+    if end >= cursor.end or cursor.data[end] != _DOLLAR:
         return None
 
     # Skip opening $ and abort if it's followed by whitespace or another $
     end += 1
-    if end >= cursor.end and (
+    if end >= cursor.end or (
         cursor.data[end] in (_DOLLAR, _SPACE, _TAB, _NL, _CR)
     ):
         return None