diff --git a/srcpkgs/bcnc/template b/srcpkgs/bcnc/template
index bd573f4b199..e36fca328db 100644
--- a/srcpkgs/bcnc/template
+++ b/srcpkgs/bcnc/template
@@ -6,7 +6,7 @@ archs=noarch
 wrksrc=bCNC-$version
 build_style=python3-module
 hostmakedepends="python3-setuptools"
-depends="python3-pyserial python3-Pillow python3-tkinter python3-numpy libopencv-python3 python3-scipy"
+depends="python3-pyserial python3-Pillow python3-tkinter python3-numpy python3-scipy"
 short_desc="GRBL CNC command sender, autoleveler and g-code editor"
 maintainer="Urs Schulz <voidpkgs@ursschulz.de>"
 license="GPL-2.0-only"
@@ -14,6 +14,17 @@ homepage="https://github.com/vlachoudis/bCNC"
 distfiles="${PYPI_SITE}/b/bCNC/bCNC-${version}.tar.gz"
 checksum=2df238989184179726870559f0531aea1e85ae9369d194bf8dba3638107671d7
 
+# opencv is not available on 32-bit ppc
+case "$XBPS_TARGET_MACHINE" in
+	ppc64*) ;;
+	ppc*) _no_opencv=yes;;
+esac
+
+# libopencv-python3 is optional
+if [ -z "$_no_opencv" ]; then
+	depends+=" libopencv-python3"
+fi
+
 post_install() {
 	vmkdir usr/share/applications
 	vmkdir usr/share/pixmaps