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Diffstat (limited to 'src/zopfli/zlib_container.c')
-rw-r--r--src/zopfli/zlib_container.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/zopfli/zlib_container.c b/src/zopfli/zlib_container.c
index 5b7d0aa..130ffc7 100644
--- a/src/zopfli/zlib_container.c
+++ b/src/zopfli/zlib_container.c
@@ -53,7 +53,7 @@ void ZopfliZlibCompress(const ZopfliOptions* options,
unsigned char bitpointer = 0;
unsigned checksum = adler32(in, (unsigned)insize);
unsigned cmf = 120; /* CM 8, CINFO 7. See zlib spec.*/
- unsigned flevel = 0;
+ unsigned flevel = 3;
unsigned fdict = 0;
unsigned cmfflg = 256 * cmf + fdict * 32 + flevel * 64;
unsigned fcheck = 31 - cmfflg % 31;