diff --git a/libguestfs.spec b/libguestfs.spec
index 27fcc96..3eaf31d 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -66,6 +66,10 @@ License:       LGPLv2+
 
 # 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/