diff --git a/src/ssn/extractFileStream.ts b/src/ssn/extractFileStream.ts
index 678b4d4..2adf192 100644
--- a/src/ssn/extractFileStream.ts
+++ b/src/ssn/extractFileStream.ts
@@ -10,7 +10,7 @@ import streamSetMaxLength from './streams/streamSetMaxLength';
  * The stream must already start at the .zip's local file header
  * and must transparently span across multiple disks if necessary.
  */
-export default function extractFileStream(file: ISsnFileEntry, inputStream: stream.Readable): stream.Readable {
+export default function extractFileStream(file: ISsnFileEntry, inputStream: stream.Readable, skipDecompression: boolean = false): stream.Readable {
   let curStream = inputStream;
 
   curStream = streamSetMaxLength(curStream, file.compressedSize);
@@ -21,13 +21,15 @@ export default function extractFileStream(file: ISsnFileEntry, inputStream: stre
     curStream = curStream.pipe(decryptTransform);
   }
 
-  /*//pipe into decompression
-  const decompressTransform = zlib.createInflateRaw();
-  decompressTransform.on('error', (error) => {
-    //TODO: need to throw error sync, not async
-    throw new Error(`Error during decompression of "${file.name}": ${error.message}`);
-  });
-  curStream = curStream.pipe(decompressTransform);*/
+  if (skipDecompression) {
+    //pipe into decompression
+    const decompressTransform = zlib.createInflateRaw();
+    decompressTransform.on('error', (error) => {
+      //TODO: need to throw error sync, not async
+      throw new Error(`Error during decompression of "${file.name}": ${error.message}`);
+    });
+    curStream = curStream.pipe(decompressTransform);
+  }
 
   return curStream;
 }
diff --git a/src/ssn/getPatch.ts b/src/ssn/getPatch.ts
index e006503..5f2127a 100644
--- a/src/ssn/getPatch.ts
+++ b/src/ssn/getPatch.ts
@@ -40,7 +40,7 @@ export default async function getPatch(product: Product, from: number, to: numbe
   fileEntries.filter((file) => file.diffType === SsnDiffType.NewFile).forEach(async (file) => {
     try {
       const fileStream = await getFileFromDisks(diskFilenames, { diskStart: file.diskNumberStart, offset: file.offset, storedSize: file.compressedSize });
-      const fileContents = extractFileStream(file, fileStream);
+      const fileContents = extractFileStream(file, fileStream, true);
       console.debug(await streamToArrayBuffer(fileContents));
       //TODO: need to write to disk
     } catch (error) {
@@ -52,7 +52,7 @@ export default async function getPatch(product: Product, from: number, to: numbe
   fileEntries.filter((file) => file.diffType === SsnDiffType.Changed).forEach(async (file) => {
     try {
       const fileStream = await getFileFromDisks(diskFilenames, { diskStart: file.diskNumberStart, offset: file.offset, storedSize: file.compressedSize });
-      const fileContents = extractFileStream(file, fileStream);
+      const fileContents = extractFileStream(file, fileStream, true);
       console.debug(await streamToArrayBuffer(fileContents));
       //TODO: need to apply diffing, then write to disk
     } catch (error) {