diff --git a/Library/Homebrew/Gemfile b/Library/Homebrew/Gemfile
index e6a4fdb19b..9e4809a992 100644
--- a/Library/Homebrew/Gemfile
+++ b/Library/Homebrew/Gemfile
@@ -23,7 +23,7 @@ end
 gem "activesupport"
 gem "concurrent-ruby"
 gem "mechanize"
-gem "patchelf" if ENV["HOMEBREW_PATCHELF_RB"]
+gem "patchelf", "~> 1.1" if ENV["HOMEBREW_PATCHELF_RB"]
 gem "plist"
 gem "rubocop-performance"
 gem "rubocop-rspec"
diff --git a/Library/Homebrew/os/linux/elf.rb b/Library/Homebrew/os/linux/elf.rb
index 51a1240207..2730d1da41 100644
--- a/Library/Homebrew/os/linux/elf.rb
+++ b/Library/Homebrew/os/linux/elf.rb
@@ -93,7 +93,7 @@ module ELFShim
     return @dynamic_elf if defined? @dynamic_elf
 
     @dynamic_elf = if HOMEBREW_PATCHELF_RB
-      patchelf_patcher.instance_variable_get(:@elf).segment_by_type(:DYNAMIC).present?
+      patchelf_patcher.elf.segment_by_type(:DYNAMIC).present?
     elsif which "readelf"
       Utils.popen_read("readelf", "-l", to_path).include?(" DYNAMIC ")
     elsif which "file"