diff --git a/snappy.cc b/snappy.cc
index a60025e..50fd3a1 100644
--- a/snappy.cc
+++ b/snappy.cc
@@ -74,6 +74,7 @@
 #include <cstdint>
 #include <cstdio>
 #include <cstring>
+#include <memory>
 #include <string>
 #include <utility>
 #include <vector>
@@ -1655,14 +1656,13 @@ size_t Compress(Source* reader, Sink* writer) {
     uint16_t* table = wmem.GetHashTable(num_to_read, &table_size);
 
     // Compress input_fragment and append to dest
-    const int max_output = MaxCompressedLength(num_to_read);
-
-    // Need a scratch buffer for the output, in case the byte sink doesn't
-    // have room for us directly.
+    int max_output = MaxCompressedLength(num_to_read);
 
     // Since we encode kBlockSize regions followed by a region
     // which is <= kBlockSize in length, a previously allocated
     // scratch_output[] region is big enough for this iteration.
+    // Need a scratch buffer for the output, in case the byte sink doesn't
+    // have room for us directly.
     char* dest = writer->GetAppendBuffer(max_output, wmem.GetScratchOutput());
     char* end = internal::CompressFragment(fragment, fragment_size, dest, table,
                                            table_size);
@@ -1674,7 +1674,6 @@ size_t Compress(Source* reader, Sink* writer) {
   }
 
   Report(token, "snappy_compress", written, uncompressed_size);
-
   return written;
 }