diff --git a/zlibWrapper/Makefile b/zlibWrapper/Makefile
index 42a8d32d5..69c976fa5 100644
--- a/zlibWrapper/Makefile
+++ b/zlibWrapper/Makefile
@@ -32,7 +32,7 @@ test: example fitblk example_zstd fitblk_zstd zwrapbench
 	./fitblk_zstd 10240 <../zstd_compression_format.md
 	./fitblk_zstd 40960 <../zstd_compression_format.md
 	./zwrapbench -qb3B1K ../zstd_compression_format.md
-	./zwrapbench -qb1e5r ../lib ../programs ../tests
+	./zwrapbench -rqb1e5 ../lib ../programs ../tests
 
 #valgrindTest: ZSTDLIBRARY = $(ZSTDLIBDIR)/libzstd.so
 valgrindTest: VALGRIND = LD_LIBRARY_PATH=$(ZSTDLIBDIR) valgrind --track-origins=yes --leak-check=full --error-exitcode=1
@@ -45,7 +45,7 @@ valgrindTest: clean example fitblk example_zstd fitblk_zstd zwrapbench
 	$(VALGRIND) ./fitblk_zstd 10240 <../zstd_compression_format.md
 	$(VALGRIND) ./fitblk_zstd 40960 <../zstd_compression_format.md
 	$(VALGRIND) ./zwrapbench -qb3B1K ../zstd_compression_format.md
-	$(VALGRIND) ./zwrapbench -qb1e5 ../lib ../programs ../tests
+	$(VALGRIND) ./zwrapbench -rqb1e5 ../lib ../programs ../tests
 
 .c.o:
 	$(CC) $(CFLAGS) -c -o $@ $<
diff --git a/zlibWrapper/README.md b/zlibWrapper/README.md
index a3d161f27..163009a8b 100644
--- a/zlibWrapper/README.md
+++ b/zlibWrapper/README.md
@@ -102,7 +102,7 @@ The speed of compression can be improved with reusing a single context with foll
 - free the context with `deflateEnd`
 
 To check the difference we made experiments using `zwrapbench -ri6b6` with zstd and zlib compression (both at level 6).
-The input data was decompressed git repository downloaded from https://github.com/git/git/archive/master.zip that contains 2979 files.
+The input data was decompressed git repository downloaded from https://github.com/git/git/archive/master.zip which contains 2979 files.
 The table below shows that reusing contexts has a minor influence on zlib but it gives improvement for zstd.
 In our example (the last 2 lines) it gives 4% better compression speed and 5% better decompression speed.
 
diff --git a/zlibWrapper/zstd_zlibwrapper.c b/zlibWrapper/zstd_zlibwrapper.c
index 524ca7868..3464c600d 100644
--- a/zlibWrapper/zstd_zlibwrapper.c
+++ b/zlibWrapper/zstd_zlibwrapper.c
@@ -260,7 +260,7 @@ ZEXTERN int ZEXPORT z_deflate OF((z_streamp strm, int flush))
     if (zwc->zbc == NULL) {
         int res;
         zwc->zbc = ZSTD_createCStream_advanced(zwc->customMem);
-        if (zwc->zbc == NULL) return ZWRAPC_finishWithError(zwc, strm, res); 
+        if (zwc->zbc == NULL) return ZWRAPC_finishWithError(zwc, strm, 0); 
         res = ZWRAP_initializeCStream(zwc, NULL, 0, (flush == Z_FINISH) ? strm->avail_in : 0);
         if (res != Z_OK) return ZWRAPC_finishWithError(zwc, strm, res);
     } else {