diff --git a/kwave-21.04.1-gcc-11.1.0.patch b/kwave-21.04.1-gcc-11.1.0.patch
new file mode 100644
index 0000000..cc2e821
--- /dev/null
+++ b/kwave-21.04.1-gcc-11.1.0.patch
@@ -0,0 +1,12 @@
+diff --git a/plugins/codec_wav/WavDecoder.cpp b/plugins/codec_wav/WavDecoder.cpp
+index 9430404..2390c08 100644
+--- a/plugins/codec_wav/WavDecoder.cpp
++++ b/plugins/codec_wav/WavDecoder.cpp
+@@ -18,6 +18,7 @@
+ #include "config.h"
+ #include <stdlib.h>
+ #include <new>
++#include <limits>
+ 
+ #include <audiofile.h>
+ 
diff --git a/kwave.spec b/kwave.spec
index b29a36c..2bbad0f 100644
--- a/kwave.spec
+++ b/kwave.spec
@@ -1,16 +1,16 @@
 %define majver %(echo %version | cut -d. -f1-2)
 
 Name:          kwave
-Version:       21.04.0
+Version:       21.04.1
 Release:       1mamba
 Summary:       KDE Frameworks 5 sound editor
 Group:         Graphical Desktop/Applications/Multimedia
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           https://www.kde.org
+URL:           https://kde.org/
 Source:        https://download.kde.org/stable/release-service/%{version}/src/kwave-%{version}.tar.xz
-# Source:        http://download.kde.org/stable/frameworks/%{majver}/...-%{version}.tar.xz
+Patch0:        kwave-21.04.1-gcc-11.1.0.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -79,6 +79,7 @@ This package contains libraries and header files for developing applications tha
 
 %prep
 %setup -q
+%patch0 -p1
 
 %build
 %cmake_kde5 -d build
@@ -123,6 +124,9 @@ exit 0
 %{_libdir}/libkwavegui.so.*
 
 %changelog
+* Sun May 16 2021 Automatic Build System <autodist@mambasoft.it> 21.04.1-1mamba
+- automatic version update by autodist
+
 * Thu Apr 22 2021 Automatic Build System <autodist@mambasoft.it> 21.04.0-1mamba
 - automatic version update by autodist