diff --git a/syntax_files/go.yaml b/syntax_files/go.yaml
index 480a162..4ec3126 100644
--- a/syntax_files/go.yaml
+++ b/syntax_files/go.yaml
@@ -2,7 +2,7 @@ filetype: go
 
 detect:
     filename: "\\.go$"
-    header: "^package\\s.*"
+    header: "(^package\\s.*)"
 
 rules:
     # Conditionals and control flow