diff --git a/lib/configuration-properties-extension.js b/lib/configuration-properties-extension.js
index 64ad10c..8bde7e5 100644
--- a/lib/configuration-properties-extension.js
+++ b/lib/configuration-properties-extension.js
@@ -101,8 +101,8 @@ class YamlToPropertiesConverter {
       const lines = val.split('\n').slice(0, -1)
       const lastIdx = lines.length - 1
       val = lines.reduce((accum, it, idx) => {
-        accum = accum.concat(`${it}\\n`)
-        if (idx !== lastIdx) accum = accum.concat('\\\n')
+        accum = accum.concat(it)
+        if (idx !== lastIdx) accum = accum.concat('\\n\\\n')
         if (idx === 0) accum = '\\\n'.concat(accum)
         return accum
       }, '')
diff --git a/test/configuration-properties-extension-test.js b/test/configuration-properties-extension-test.js
index ada47e5..4c118e1 100644
--- a/test/configuration-properties-extension-test.js
+++ b/test/configuration-properties-extension-test.js
@@ -682,7 +682,7 @@ describe('configuration-properties-extension', () => {
         expect(messages).to.be.empty()
         const actual = run(input)
         const propertiesBlock = actual.findBy({ context: 'listing' })[0]
-        const expected = ['foo.bar.baz=\\', 'one\\n\\', 'two\\n\\', 'three\\n']
+        const expected = ['foo.bar.baz=\\', 'one\\n\\', 'two\\n\\', 'three']
         expect(propertiesBlock.getSourceLines()).to.eql(expected)
       })