diff --git a/lib/jsduck/lexer.rb b/lib/jsduck/lexer.rb
index 7d9bd09164c00c10eee15a5616b67322c60e84d6..73827d093212fb18c1f9b0688e590e28c11ebea6 100644
--- a/lib/jsduck/lexer.rb
+++ b/lib/jsduck/lexer.rb
@@ -127,12 +127,12 @@ module JsDuck
         elsif @input.check(/'/)
           return {
             :type => :string,
-            :value => @input.scan(/'([^'\\]|\\.)*'/).sub(/^'(.*)'$/, "\\1")
+            :value => @input.scan(/'([^'\\]|\\.)*'/m).sub(/^'(.*)'$/m, "\\1")
           }
         elsif @input.check(/"/)
           return {
             :type => :string,
-            :value => @input.scan(/"([^"\\]|\\.)*"/).sub(/^"(.*)"$/, "\\1")
+            :value => @input.scan(/"([^"\\]|\\.)*"/m).sub(/^"(.*)"$/m, "\\1")
           }
         elsif @input.check(/\//)
           # Several things begin with dash:
diff --git a/spec/lexer_spec.rb b/spec/lexer_spec.rb
index d125dc0a5c192746bd764de8721a8bbc5187ae76..5434a0fb07fcfff9703f7a73e61879cddd40bbcb 100644
--- a/spec/lexer_spec.rb
+++ b/spec/lexer_spec.rb
@@ -89,6 +89,14 @@ describe JsDuck::Lexer do
     it "when escaped single-quote inside single-quoted string" do
       lex(@s+@b+@s+@s   + ' "blah"').should == [[:string, @b+@s], [:string, "blah"]]
     end
+
+    it "when newlines escaped inside double-quoted string" do
+      lex(@d+"A\\\nB"+@d).should == [[:string, "A\\\nB"]]
+    end
+
+    it "when newlines escaped inside single-quoted string" do
+      lex(@s+"A\\\nB"+@s).should == [[:string, "A\\\nB"]]
+    end
   end
 
   it "identifies $ as beginning of identifier" do