diff --git a/john-1.9.0-jumbo-gcc11.patch b/john-1.9.0-jumbo-gcc11.patch
new file mode 100644
index 0000000..dee70a3
--- /dev/null
+++ b/john-1.9.0-jumbo-gcc11.patch
@@ -0,0 +1,47 @@
+--- john-1.9.0-jumbo-1/src/blake2.h.orig	2021-06-08 13:33:13.878627572 +0200
++++ john-1.9.0-jumbo-1/src/blake2.h	2021-06-08 13:36:22.164069924 +0200
+@@ -10,7 +10,7 @@
+    You should have received a copy of the CC0 Public Domain Dedication along with
+    this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
+ */
+-#pragma once
++
+ #ifndef __BLAKE2_H__
+ #define __BLAKE2_H__
+ 
+@@ -57,7 +57,7 @@
+     uint8_t  personal[BLAKE2S_PERSONALBYTES];  // 32
+   } blake2s_param;
+ 
+-  JTR_ALIGN( 64 ) typedef struct __blake2s_state
++  typedef struct JTR_ALIGN( 64 ) __blake2s_state
+   {
+     uint32_t h[8];
+     uint32_t t[2];
+@@ -82,7 +82,7 @@
+     uint8_t  personal[BLAKE2B_PERSONALBYTES];  // 64
+   } blake2b_param;
+ 
+-  JTR_ALIGN( 64 ) typedef struct __blake2b_state
++  typedef struct JTR_ALIGN( 64 ) __blake2b_state
+   {
+     uint64_t h[8];
+     uint64_t t[2];
+@@ -94,7 +94,7 @@
+ #if defined(JOHN_NO_SIMD) || (!defined(__SSE2__) && !defined(__SSE4_1__) && !defined(__XOP__))
+   typedef struct __blake2sp_state
+ #else
+-  JTR_ALIGN( 64 ) typedef struct __blake2sp_state
++  typedef struct JTR_ALIGN( 64 ) __blake2sp_state
+ #endif
+   {
+     blake2s_state S[8][1];
+@@ -106,7 +106,7 @@
+ #if defined(JOHN_NO_SIMD) || (!defined(__SSE2__) && !defined(__SSE4_1__) && !defined(__XOP__))
+   typedef struct __blake2bp_state
+ #else
+-  JTR_ALIGN( 64 ) typedef struct __blake2bp_state
++  typedef struct JTR_ALIGN( 64 ) __blake2bp_state
+ #endif
+   {
+     blake2b_state S[4][1];
diff --git a/john.changes b/john.changes
index 40e11ff..e67a2b9 100644
--- a/john.changes
+++ b/john.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jun  8 11:46:18 UTC 2021 - simmphonie@opensuse.org
+
+- add john-1.9.0-jumbo-gcc11.patch to fix alignment compile errors
+  on GCC 11 gh#4611
+
 -------------------------------------------------------------------
 Sat Mar 13 10:10:12 UTC 2021 - Dirk Müller <dmueller@suse.com>
 
diff --git a/john.spec b/john.spec
index 66fd92e..6f3c755 100644
--- a/john.spec
+++ b/john.spec
@@ -36,6 +36,7 @@ Source9:        https://www.openwall.com/john/k/%{jumboversion}.tar.xz.sign
 # PATCH-FIX-UPSTREAM cl-device.patch gh#openwall/john#4331
 Patch0:         cl-device.patch
 Patch1:         john-1.9.0-jumbo-gcc10.patch
+Patch2:         john-1.9.0-jumbo-gcc11.patch
 BuildRequires:  dos2unix
 BuildRequires:  gmp-devel
 BuildRequires:  libpcap-devel
@@ -58,6 +59,7 @@ cd ..
 rm -r %{jumboversion}
 %patch0 -p1
 %patch1 -p1
+%patch2 -p1
 # adapt the configs
 perl -pi -e "s#Wordlist = (.*)#Wordlist = %{johndir}/password.lst#g" $RPM_BUILD_DIR/%{name}-%{version}/run/john.conf
 perl -pi -e 's#^(\#define JOHN_SYSTEMWIDE_EXEC)\s.+$#$1\t\"%{johndir}\"#g' $RPM_BUILD_DIR/%{name}-%{version}/src/params.h