diff --git a/debian/patches/0001-mask-CACHED_BRUSH-when-checking-brush-style.patch b/debian/patches/0001-mask-CACHED_BRUSH-when-checking-brush-style.patch
new file mode 100644
index 0000000..a63e3e0
--- /dev/null
+++ b/debian/patches/0001-mask-CACHED_BRUSH-when-checking-brush-style.patch
@@ -0,0 +1,16 @@
+From: Armin Novak <armin.novak@thincast.com>
+Date: Tue, 23 Jun 2020 09:24:35 +0200
+Subject: Fixed #6298: Mask CACHED_BRUSH when checking brush style
+
+--- a/libfreerdp/core/orders.c
++++ b/libfreerdp/core/orders.c
+@@ -139,7 +139,8 @@ static BYTE get_bmf_bpp(UINT32 bmf, BOOL* pValid)
+ {
+ 	if (pValid)
+ 		*pValid = TRUE;
+-	switch (bmf)
++	/* Mask out highest bit */
++	switch (bmf & (~CACHED_BRUSH))
+ 	{
+ 		case 1:
+ 			return 1;
diff --git a/debian/patches/series b/debian/patches/series
index 3c49a1f..dc0e956 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,2 +1,3 @@
+0001-mask-CACHED_BRUSH-when-checking-brush-style.patch
 1001_spelling-fixes.patch
 2001-fake-git-revision.patch