diff --git a/guestfs-tools.spec b/guestfs-tools.spec
index 43facfd..0e7c8c7 100644
--- a/guestfs-tools.spec
+++ b/guestfs-tools.spec
@@ -31,6 +31,10 @@ License:       GPLv2+
 
 # Build only for architectures that have a kernel
 ExclusiveArch: %{kernel_arches}
+%if 0%{?rhel}
+# No qemu-kvm on POWER (RHBZ#1946532).
+ExcludeArch: %{power64}
+%endif
 
 # Source and patches.
 URL:           http://libguestfs.org/