diff --git a/skillls/main.py b/skillls/main.py
index 66782aa..a025d8f 100644
--- a/skillls/main.py
+++ b/skillls/main.py
@@ -165,7 +165,7 @@ class SkillLanguageServer(LanguageServer):
     def _diagnose_cisms(self, doc: TextDocument) -> Generator[Diagnostic, None, None]:
         for row, line in enumerate(doc.lines):
             for m in finditer(
-                r"(?P<proc>procedure\s+)?([a-zA-Z_][a-zA-Z_0-9]+)\(", line
+                r"(?P<proc>procedure\s+|;.*)?([a-zA-Z_][a-zA-Z_0-9]+)\(", line
             ):
                 if not m.group("proc"):
                     yield Diagnostic(