diff --git a/lib/pundit/policy_finder.rb b/lib/pundit/policy_finder.rb
index adb3b07..a3c4d42 100644
--- a/lib/pundit/policy_finder.rb
+++ b/lib/pundit/policy_finder.rb
@@ -21,12 +21,12 @@ module Pundit
     end
 
     def scope!
-      raise NotDefinedError, "unable to find policy scope of blank object `#{object.inspect}`" if object.blank?
+      raise NotDefinedError, "unable to find policy scope of nil" if object.nil?
       scope or raise NotDefinedError, "unable to find scope `#{find}::Scope` for `#{object.inspect}`"
     end
 
     def policy!
-      raise NotDefinedError, "unable to find policy of blank object `#{object.inspect}`" if object.blank?
+      raise NotDefinedError, "unable to find policy of nil" if object.nil?
       policy or raise NotDefinedError, "unable to find policy `#{find}` for `#{object.inspect}`"
     end
 
diff --git a/spec/pundit_spec.rb b/spec/pundit_spec.rb
index c74d126..d751b33 100644
--- a/spec/pundit_spec.rb
+++ b/spec/pundit_spec.rb
@@ -64,7 +64,7 @@ describe Pundit do
     end
 
     it "throws an exception if the given policy scope is nil" do
-      expect { Pundit.policy_scope!(user, nil) }.to raise_error(Pundit::NotDefinedError, "unable to find policy scope of blank object `nil`")
+      expect { Pundit.policy_scope!(user, nil) }.to raise_error(Pundit::NotDefinedError, "unable to find policy scope of nil")
     end
   end
 
@@ -188,7 +188,7 @@ describe Pundit do
     end
 
     it "throws an exception if the given policy is nil" do
-      expect { Pundit.policy!(user, nil) }.to raise_error(Pundit::NotDefinedError, "unable to find policy of blank object `nil`")
+      expect { Pundit.policy!(user, nil) }.to raise_error(Pundit::NotDefinedError, "unable to find policy of nil")
     end
   end