diff --git a/tools/grammars/compiler/loader.go b/tools/grammars/compiler/loader.go
index 5937bdd2..ce7d3ec0 100644
--- a/tools/grammars/compiler/loader.go
+++ b/tools/grammars/compiler/loader.go
@@ -122,7 +122,7 @@ func isValidGrammar(path string, info os.FileInfo) bool {
 	case ".tmlanguage", ".yaml-tmlanguage":
 		return true
 	case ".cson", ".json":
-		return strings.HasSuffix(dir, "/grammars")
+		return strings.HasSuffix(dir, "/grammars") || strings.HasSuffix(dir, "/syntaxes")
 	default:
 		return false
 	}