diff --git a/.SRCINFO b/.SRCINFO
index 3cd34f03219..0b5e926c6ea 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = openmsx-catapult
 	pkgdesc = Front-end for openMSX: the MSX emulator that aims for perfection.
 	pkgver = 18.0
-	pkgrel = 2
+	pkgrel = 3
 	url = http://openmsx.org
 	arch = i686
 	arch = x86_64
diff --git a/PKGBUILD b/PKGBUILD
index aea59db0c5b..f294319e591 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -3,7 +3,7 @@
 
 pkgname=openmsx-catapult
 pkgver=18.0
-pkgrel=2
+pkgrel=3
 pkgdesc="Front-end for openMSX: the MSX emulator that aims for perfection."
 arch=('i686' 'x86_64')
 url="http://openmsx.org"
@@ -17,7 +17,11 @@ source=("https://github.com/openMSX/wxcatapult/archive/RELEASE_${pkgver//./_}.ta
 build() {
   cd "wxcatapult-RELEASE_${pkgver//./_}"
 
-  # Changing some default configurations...
+  # Catapult uses wxwidgets-gtk2
+  sed -i 's@wx-config@wx-config-gtk2@' build/probe.mk
+  sed -i 's@wx-config@wx-config-gtk2@' build/main.mk
+
+  # Changing some default configurations
   sed -i 's@SYMLINK_FOR_BINARY:=true@SYMLINK_FOR_BINARY:=false@' build/custom.mk
   sed -i 's@/opt/openMSX-Catapult@/usr/share/openmsx-catapult@' build/custom.mk
   sed -i 's@/opt/openMSX/bin/openmsx@/usr/bin/openmsx@' build/custom.mk