diff --git a/languages/php/config.toml b/languages/php/config.toml
index 8c21716..fadd737 100644
--- a/languages/php/config.toml
+++ b/languages/php/config.toml
@@ -1,6 +1,6 @@
 name = "PHP"
 grammar = "php"
-path_suffixes = ["php", "phtml", "phpt"]
+path_suffixes = ["php", "phtml", "phpt", "module", "install", "theme", "inc", "engine", "test"]
 first_line_pattern = '^#!.*php'
 line_comments = ["// ", "# "]
 block_comment = { start = "/*", end = "*/", prefix = "* ", tab_size = 1 }