diff --git a/extensions/shellscript/package.json b/extensions/shellscript/package.json
index 207ae27aa1b354102eb20a4541937414ca3453e8..50c3ffdb799fa35b020c627004275195d6e5d169 100644
--- a/extensions/shellscript/package.json
+++ b/extensions/shellscript/package.json
@@ -13,13 +13,45 @@
 		"languages": [{
 			"id": "shellscript",
 			"aliases": ["Shell Script", "shellscript", "bash", "sh", "zsh", "ksh", "csh"],
-			"extensions": [".sh", ".bash", ".bashrc", ".bash_aliases", ".bash_profile", ".bash_login", ".ebuild", ".install", ".profile", ".bash_logout", ".zsh", ".zshrc", ".zprofile", ".zlogin", ".zlogout", ".zshenv", ".zsh-theme", ".ksh", ".csh", ".cshrc"],
+			"extensions": [
+				".sh",
+				".bash",
+				".bashrc",
+				".bash_aliases",
+				".bash_profile",
+				".bash_login",
+				".ebuild",
+				".install",
+				".profile",
+				".bash_logout",
+				".zsh",
+				".zshrc",
+				".zprofile",
+				".zlogin",
+				".zlogout",
+				".zshenv",
+				".zsh-theme",
+				".ksh",
+				".csh",
+				".cshrc",
+				".tcshrc",
+				".yashrc",
+				".yash_profile"
+			],
 			"filenames": [
-        "APKBUILD",
-        "PKGBUILD",
-        ".envrc"
-      ],
-			"firstLine": "^#!.*\\b(bash|zsh|sh|tcsh|ksh|ash|qsh|csh).*|^#\\s*-\\*-[^*]*mode:\\s*shell-script[^*]*-\\*-",
+				"APKBUILD",
+				"PKGBUILD",
+				".envrc",
+				".hushlogin",
+				"zshrc",
+				"zshenv",
+				"zlogin",
+				"zprofile",
+				"zlogout",
+				"bashrc_Apple_Terminal",
+				"zshrc_Apple_Terminal"
+			],
+			"firstLine": "^#!.*\\b(bash|zsh|sh|ksh|dtksh|pdksh|mksh|ash|dash|yash|sh|csh|jcsh|tcsh|itcsh).*|^#\\s*-\\*-[^*]*mode:\\s*shell-script[^*]*-\\*-",
 			"configuration": "./language-configuration.json",
 			"mimetypes": ["text/x-shellscript"]
 		}],