diff --git a/lib/rubocop/cop/layout/heredoc_indentation.rb b/lib/rubocop/cop/layout/heredoc_indentation.rb
index e2c617567ac..8f1bb8d9568 100644
--- a/lib/rubocop/cop/layout/heredoc_indentation.rb
+++ b/lib/rubocop/cop/layout/heredoc_indentation.rb
@@ -161,11 +161,11 @@ def indentation_width
         end
 
         def heredoc_body(node)
-          node.loc.heredoc_body.source.scrub
+          node.loc.heredoc_body.source
         end
 
         def heredoc_end(node)
-          node.loc.heredoc_end.source.scrub
+          node.loc.heredoc_end.source
         end
       end
     end
diff --git a/lib/rubocop/cop/lint/interpolation_check.rb b/lib/rubocop/cop/lint/interpolation_check.rb
index 766677ced48..5418402e341 100644
--- a/lib/rubocop/cop/lint/interpolation_check.rb
+++ b/lib/rubocop/cop/lint/interpolation_check.rb
@@ -23,7 +23,7 @@ class InterpolationCheck < Cop
         def on_str(node)
           parent = node.parent
           return if parent && (parent.dstr_type? || parent.regexp_type?)
-          return unless /(?<!\\)#\{.*\}/.match?(node.source.scrub)
+          return unless /(?<!\\)#\{.*\}/.match?(node.source)
           return if heredoc?(node)
 
           add_offense(node)
diff --git a/lib/rubocop/cop/style/percent_literal_delimiters.rb b/lib/rubocop/cop/style/percent_literal_delimiters.rb
index 5911b766a4f..c0deb203332 100644
--- a/lib/rubocop/cop/style/percent_literal_delimiters.rb
+++ b/lib/rubocop/cop/style/percent_literal_delimiters.rb
@@ -102,12 +102,12 @@ def contains_delimiter?(node, delimiters)
           delimiters_regexp = Regexp.union(delimiters)
           node
             .children.map { |n| string_source(n) }.compact
-            .any? { |s| delimiters_regexp.match?(s.scrub) }
+            .any? { |s| delimiters_regexp.match?(s) }
         end
 
         def string_source(node)
           if node.is_a?(String)
-            node
+            node.scrub
           elsif node.respond_to?(:type) && (node.str_type? || node.sym_type?)
             node.source
           end