diff --git a/srcpkgs/uhd/template b/srcpkgs/uhd/template
index 45dc39c6e72..5f043162d7d 100644
--- a/srcpkgs/uhd/template
+++ b/srcpkgs/uhd/template
@@ -20,7 +20,18 @@ case "${XBPS_TARGET_MACHINE}" in
 	arm*) configure_args+=" -DNEON_SIMD_ENABLE=OFF"
 esac
 
+_use_libatomic=no
+
 if [ "$XBPS_TARGET_NO_ATOMIC8" ]; then
+	_use_libatomic=yes
+else
+	# 128-bit atomics
+	case "$XBPS_TARGET_MACHINE" in
+		ppc*) _use_libatomic=yes ;;
+	esac
+fi
+
+if [ "$_use_libatomic" = "yes" ]; then
 	makedepends+=" libatomic-devel"
 	configure_args+=" -DCMAKE_CXX_STANDARD_LIBRARIES=-latomic"
 fi