diff --git a/0005-qcow2-Fix-QCOW2_COMPRESSED_SECTOR_MASK.patch b/0005-qcow2-Fix-QCOW2_COMPRESSED_SECTOR_MASK.patch
new file mode 100644
index 0000000..eb76ab9
--- /dev/null
+++ b/0005-qcow2-Fix-QCOW2_COMPRESSED_SECTOR_MASK.patch
@@ -0,0 +1,27 @@
+From: Max Reitz <mreitz@redhat.com>
+Date: Mon, 28 Oct 2019 17:18:40 +0100
+Subject: [PATCH] qcow2: Fix QCOW2_COMPRESSED_SECTOR_MASK
+
+Masks for L2 table entries should have 64 bit.
+
+Fixes: b6c246942b14d3e0dec46a6c5868ed84e7dbea19
+Buglink: https://bugs.launchpad.net/qemu/+bug/1850000
+Cc: qemu-stable@nongnu.org
+Signed-off-by: Max Reitz <mreitz@redhat.com>
+---
+ block/qcow2.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/block/qcow2.h b/block/qcow2.h
+index 567375e56c..45f9585c08 100644
+--- a/block/qcow2.h
++++ b/block/qcow2.h
+@@ -77,7 +77,7 @@
+ 
+ /* Defined in the qcow2 spec (compressed cluster descriptor) */
+ #define QCOW2_COMPRESSED_SECTOR_SIZE 512U
+-#define QCOW2_COMPRESSED_SECTOR_MASK (~(QCOW2_COMPRESSED_SECTOR_SIZE - 1))
++#define QCOW2_COMPRESSED_SECTOR_MASK (~(QCOW2_COMPRESSED_SECTOR_SIZE - 1ULL))
+ 
+ /* Must be at least 2 to cover COW */
+ #define MIN_L2_CACHE_SIZE 2 /* cache entries */
diff --git a/qemu.spec b/qemu.spec
index c4b6f75..b523bcd 100644
--- a/qemu.spec
+++ b/qemu.spec
@@ -148,7 +148,7 @@
 Summary: QEMU is a FAST! processor emulator
 Name: qemu
 Version: 4.1.0
-Release: 5%{?rcrel}%{?dist}
+Release: 6%{?rcrel}%{?dist}
 Epoch: 2
 License: GPLv2 and BSD and MIT and CC-BY
 URL: http://www.qemu.org/
@@ -179,6 +179,8 @@ Patch0002: 0002-block-posix-Always-allocate-the-first-block.patch
 Patch0003: 0003-tests-make-filemonitor-test-more-robust-to-event-ord.patch
 # Workaround for qcow2 triggered XFS corruption (bz #1763519)
 Patch0004: 0004-Revert-block-avoid-recursive-block_status-call-if-po.patch
+# Fix compressed qcow2 'qemu-img check' errors (bz #1768541)
+Patch0005: 0005-qcow2-Fix-QCOW2_COMPRESSED_SECTOR_MASK.patch
 
 
 # documentation deps
@@ -1865,6 +1867,9 @@ getent passwd qemu >/dev/null || \
 
 
 %changelog
+* Mon Nov 11 2019 Cole Robinson <crobinso@redhat.com> - 2:4.1.0-6
+- Fix compressed qcow2 'qemu-img check' errors (bz #1768541)
+
 * Thu Oct 24 2019 Cole Robinson <crobinso@redhat.com> - 2:4.1.0-5
 - Workaround for qcow2 triggered XFS corruption (bz #1763519)