diff --git a/SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch b/SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
index 927cde1..92fa27c 100644
--- a/SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
+++ b/SOURCES/zlib-1.2.11-IBM-Z-hw-accelrated-deflate-fix.patch
@@ -273,7 +273,7 @@ index 9b09718..9284483 100644
 -    if ((strategy != s->strategy || func != configuration_table[level].func) &&
 -        s->high_water) {
 +    if ((strategy != s->strategy || func != configuration_table[level].func ||
-+        hook_flush != Z_NO_FLUSH) && s->last_flush != -2) { 
++        hook_flush != Z_NO_FLUSH) && s->high_water) {
          /* Flush the last buffer: */
 -        int err = deflate(strm, Z_BLOCK);
 +        int err = deflate(strm, RANK(hook_flush) > RANK(Z_BLOCK) ?
diff --git a/SPECS/zlib.spec b/SPECS/zlib.spec
index cf54db5..d85c90a 100644
--- a/SPECS/zlib.spec
+++ b/SPECS/zlib.spec
@@ -3,7 +3,7 @@
 
 Name:    zlib
 Version: 1.2.11
-Release: 14%{?dist}
+Release: 15%{?dist}
 Summary: The compression and decompression library
 # /contrib/dotzlib/ have Boost license
 License: zlib and Boost
@@ -162,6 +162,9 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
 
 
 %changelog
+* Mon Jun 15 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-15
+- Another fix for Z hardware-accelerated deflate for s390x architectures
+
 * Mon May 25 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-14
 - Fix for Z hardware-accelerated deflate for s390x architectures