diff --git a/extensions/make/package.json b/extensions/make/package.json
index cc244fbf7ba..d57f0077caa 100644
--- a/extensions/make/package.json
+++ b/extensions/make/package.json
@@ -15,7 +15,7 @@
 			"aliases": ["Makefile", "makefile"],
 			"extensions": [ ".mk" ],
 			"filenames": [ "Makefile", "makefile", "GNUmakefile", "OCamlMakefile" ],
-      "firstLine": "^#!/usr/bin/make",
+			"firstLine": "^#!\\s*/usr/bin/make",
 			"configuration": "./language-configuration.json"
 		}],
 		"grammars": [{
diff --git a/extensions/php/package.json b/extensions/php/package.json
index 64b788d2010..53d0b2ebe45 100644
--- a/extensions/php/package.json
+++ b/extensions/php/package.json
@@ -22,7 +22,7 @@
 					"PHP",
 					"php"
 				],
-				"firstLine": "^#!/.*\\bphp\\b",
+				"firstLine": "^#!\\s*/.*\\bphp\\b",
 				"mimetypes": [
 					"application/x-php"
 				],
diff --git a/extensions/powershell/package.json b/extensions/powershell/package.json
index 5fcb928726d..399f6fc5601 100644
--- a/extensions/powershell/package.json
+++ b/extensions/powershell/package.json
@@ -10,7 +10,7 @@
 			"id": "powershell",
 			"extensions": [ ".ps1", ".psm1", ".psd1", ".pssc", ".psrc" ],
 			"aliases": [ "PowerShell", "powershell", "ps", "ps1" ],
-			"firstLine": "^#!/.*\\bpwsh\\b",
+			"firstLine": "^#!\\s*/.*\\bpwsh\\b",
 			"configuration": "./language-configuration.json"
 		}],
 		"grammars": [{
diff --git a/extensions/ruby/package.json b/extensions/ruby/package.json
index 89bebf40aa5..98d66a891e4 100644
--- a/extensions/ruby/package.json
+++ b/extensions/ruby/package.json
@@ -14,7 +14,7 @@
 			"extensions": [ ".rb", ".rbx", ".rjs", ".gemspec", ".rake", ".ru", ".erb" ],
 			"filenames": [ "rakefile", "gemfile", "guardfile", "podfile", "capfile" ],
 			"aliases": [ "Ruby", "rb" ],
-			"firstLine": "^#!/.*\\bruby\\b",
+			"firstLine": "^#!\\s*/.*\\bruby\\b",
 			"configuration": "./language-configuration.json"
 		}],
 		"grammars": [{