diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index 90c08fc4a07af1bde25239139c62591388f65594..d5ba7df2dc798c35189042191901edc077265ac8 100644
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -142,7 +142,7 @@ class FormulaAuditor
     swig
   ]
 
-  FILEUTILS_METHODS = FileUtils.singleton_methods(false).join "|"
+  FILEUTILS_METHODS = FileUtils.singleton_methods(false).map { |m| Regexp.escape(m) }.join "|"
 
   def initialize(formula, options = {})
     @formula = formula
diff --git a/Library/Homebrew/cmd/bottle.rb b/Library/Homebrew/cmd/bottle.rb
index 5b900a9ba269af43e3b5e8d7b5923d9da22ea5b8..d9ba20daf2738378520e9b3dea62f013c3bde76a 100644
--- a/Library/Homebrew/cmd/bottle.rb
+++ b/Library/Homebrew/cmd/bottle.rb
@@ -238,7 +238,7 @@ module Homebrew
 
         ignores = []
         if f.deps.any? { |dep| dep.name == "go" }
-          ignores << %r{#{HOMEBREW_CELLAR}/go/[\d\.]+/libexec}
+          ignores << %r{#{Regexp.escape(HOMEBREW_CELLAR)}/go/[\d\.]+/libexec}
         end
 
         if ARGV.include? "--skip-relocation"
diff --git a/Library/Homebrew/cmd/create.rb b/Library/Homebrew/cmd/create.rb
index a7aa78e491850b14d9d354198b7a1cadcececdc7..eb3bec46fe56ceca170f15037d43ea15057b89fb 100644
--- a/Library/Homebrew/cmd/create.rb
+++ b/Library/Homebrew/cmd/create.rb
@@ -110,7 +110,7 @@ class FormulaCreator
       when %r{github\.com/\S+/(\S+)/archive/}
         @name = $1
       else
-        /(.*?)[-_.]?#{path.version}/.match path.basename
+        /(.*?)[-_.]?#{Regexp.escape(path.version)}/.match path.basename
         @name = $1
       end
     end