diff --git a/src/parser/keyword.rs b/src/parser/keyword.rs
index 4a71976..8510fe9 100644
--- a/src/parser/keyword.rs
+++ b/src/parser/keyword.rs
@@ -12,6 +12,7 @@ use nom::combinator::eof;
 use nom::combinator::not;
 use nom::combinator::peek;
 use nom::combinator::recognize;
+use nom::combinator::verify;
 use nom::multi::many_till;
 use nom::sequence::tuple;
 
@@ -116,7 +117,9 @@ pub(crate) fn table_formula_keyword<'b, 'g, 'r, 's>(
     _context: RefContext<'b, 'g, 'r, 's>,
     input: OrgSource<'s>,
 ) -> Res<OrgSource<'s>, Keyword<'s>> {
-    filtered_keyword(table_formula_key)(input)
+    verify(filtered_keyword(table_formula_key), |kw| {
+        !kw.value.is_empty()
+    })(input)
 }
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]