diff --git a/tests/test_parse.py b/tests/test_parse.py
index 72eb22d..e12b6d3 100644
--- a/tests/test_parse.py
+++ b/tests/test_parse.py
@@ -227,6 +227,22 @@
     return new_tokens
 
 
+# Generate text with a StartText token in it
+# We expect the following behaviour:
+# - Error if a StartText token is in the text content
+@composite
+def draw_syntax_text_invalid_extrastarttext(draw):
+    (tokens, _) = draw(draw_syntax_text_valid())
+    s_value = draw(test_tokenize.draw_token_keyword())
+    s_value.value = "StartText"
+    s_location = draw(draw_syntax_location())
+    s_type = parse.SyntaxType.TOKEN
+    start = parse.Syntax(s_value, s_location, s_type)
+    pos = draw(integers(min_value=1, max_value=(len(tokens) - 1)))
+    new_tokens = tokens[0:pos] + [start] + tokens[pos:]
+    return new_tokens
+
+
 # Generate text without EndText
 # We expect the following behaviour:
 # - Error if there is no EndText node at all
@@ -242,6 +258,7 @@
     strategies = [
         draw_syntax_text_invalid_nostarttext(),
         draw_syntax_text_invalid_invalidcontent(),
+        draw_syntax_text_invalid_extrastarttext(),
         draw_syntax_text_invalid_noendtext(),
     ]
     return draw(one_of(strategies))