diff --git a/mypaint-1.1.0-json-c-0.11.patch b/mypaint-1.1.0-json-c-0.11.patch
new file mode 100644
index 0000000..f2aa9b9
--- /dev/null
+++ b/mypaint-1.1.0-json-c-0.11.patch
@@ -0,0 +1,15 @@
+https://bugs.gentoo.org/show_bug.cgi?id=467322
+Patch-by: Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
+Fixes pkgconfig name for new json-c (since 0.11)
+
+--- brushlib/SConscript.ORIG	2012-12-31 18:03:38.000000000 +0100
++++ brushlib/SConscript	2013-04-26 11:47:27.008232199 +0200
+@@ -73,7 +73,7 @@
+ 
+ env.Append(CPPPATH='./')
+ 
+-pkg_deps = ['json']
++pkg_deps = ['json-c']
+ libs = ['m']
+ linkflags = []
+ 
diff --git a/mypaint.spec b/mypaint.spec
index 382790b..73c6402 100644
--- a/mypaint.spec
+++ b/mypaint.spec
@@ -1,7 +1,7 @@
 Name:          mypaint
 Version:       1.1.0
-Release:       1mamba
-Summary:       MyPaint is a fast and easy open-source graphics application for digital painters
+Release:       2mamba
+Summary:       A fast and easy open-source graphics application for digital painters
 Group:         Graphical Desktop/Applications/Graphics
 Vendor:        openmamba
 Distribution:  openmamba
@@ -10,6 +10,7 @@ URL:           http://mypaint.intilinux.com/
 Source:        http://download.gna.org/mypaint/mypaint-%{version}.tar.bz2
 Source1:       mypaint.desktop
 #Source2:       http://david.revoy.free.fr/forums/Mypaint/Mypaint_Deevad-brush-V2.zip
+Patch0:        mypaint-1.1.0-json-c-0.11.patch
 License:       GPL
 BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 ## AUTOBUILDREQ-BEGIN
@@ -18,6 +19,7 @@ BuildRequires: libgcc
 BuildRequires: libglib-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libjson-c-devel >= 0.12
 BuildRequires: python-numeric
 
 %description
@@ -39,7 +41,10 @@ This packages provides static libraries and headers needed for development.
 
 %prep
 %setup -q
+%patch0 -p0
 cp %{SOURCE1} desktop/
+
+%build
 scons prefix=%{buildroot}%{_prefix}
 
 %install
@@ -104,6 +109,9 @@ gtk-update-icon-cache -tf %{_datadir}/icons/hicolor
 %{_libdir}/pkgconfig/libmypaint.pc
 
 %changelog
+* Sat Jun 28 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 1.1.0-2mamba
+- rebuilt with libjson-c 0.12
+
 * Fri Jan 11 2013 Automatic Build System <autodist@mambasoft.it> 1.1.0-1mamba
 - automatic version update by autodist