diff --git a/guitarix-gtk218.patch b/guitarix-gtk218.patch
new file mode 100644
index 0000000..680bd20
--- /dev/null
+++ b/guitarix-gtk218.patch
@@ -0,0 +1,26 @@
+svn diff
+Index: libgxw/gxw/GxSelector.cpp
+===================================================================
+--- libgxw/gxw/GxSelector.cpp   (revision 842)
++++ libgxw/gxw/GxSelector.cpp   (working copy)
+@@ -21,6 +21,8 @@
+ #include <gtk/gtkprivate.h>
+ #include <string.h>
+
++#define gtk_widget_get_requisition(w, r) (*r = (w)->requisition)
++
+ #define P_(s) (s)   // FIXME -> gettext
+
+ /****************************************************************
+Index: libgxw/gxw/GxRegler.cpp
+===================================================================
+--- libgxw/gxw/GxRegler.cpp     (revision 842)
++++ libgxw/gxw/GxRegler.cpp     (working copy)
+@@ -29,6 +29,8 @@
+ #include <gtk/gtkbindings.h>
+ #include <gtk/gtkmarshal.h>
+
++#define gtk_widget_get_requisition(w, r) (*r = (w)->requisition)
++
+ #define P_(s) (s)   // FIXME -> gettext
+ #define I_(s) (s)   // FIXME -> gettext
diff --git a/guitarix.spec b/guitarix.spec
index a302e13..d43a996 100644
--- a/guitarix.spec
+++ b/guitarix.spec
@@ -6,6 +6,8 @@ Group:          Applications/Multimedia
 License:        GPLv2+
 URL:            http://guitarix.sourceforge.net/
 Source0:        http://sourceforge.net/projects/%{name}/files/%{name}/%{name}-%{version}.tar.bz2
+# Compatibility patch sent to us by upstream
+Patch0:         guitarix-gtk218.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildRequires:  boost-devel
@@ -60,6 +62,7 @@ also be used by any other ladspa host.
 
 %prep
 %setup -q
+%patch0 -p0 -b .gtk218
 
 # The build system does not use these bundled libraries by default. But
 # just to make sure: