diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk
index d9030f982f16..1b667229fa4c 100644
--- a/share/mk/src.opts.mk
+++ b/share/mk/src.opts.mk
@@ -351,12 +351,13 @@ __DEFAULT_YES_OPTIONS+=OPENMP
 __DEFAULT_NO_OPTIONS+=OPENMP
 .endif
 
+# Broken on 32-bit arm, kernel module compile errors
 .if ${__T:Marm*} != ""
 BROKEN_OPTIONS+= OFED
 .endif
 
-# ZFS is broken on 32-bit powerpc, but works on 64-bit
-.if ${__T} == "powerpc"
+# ZFS is broken on 32-bit powerpc (missing atomics), but works on 64-bit
+.if ${__T} == "powerpc" || ${__T} == "powerpcspc"
 BROKEN_OPTIONS+= ZFS LOADER_ZFS
 .endif
 
diff --git a/sys/conf/kern.opts.mk b/sys/conf/kern.opts.mk
index dee19a346bec..8d7bfe771004 100644
--- a/sys/conf/kern.opts.mk
+++ b/sys/conf/kern.opts.mk
@@ -78,11 +78,12 @@ __DEFAULT_NO_OPTIONS = \
 BROKEN_OPTIONS+= INIT_ALL_ZERO
 .endif
 
-# ZFS is broken on 32-bit powerpc
-.if ${MACHINE_ARCH} == "powerpc"
+# ZFS is broken on 32-bit powerpc, missing atomics
+.if ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpcspc"
 BROKEN_OPTIONS+= ZFS
 .endif
 
+# Broken on 32-bit arm, kernel module compile errors
 .if ${MACHINE_CPUARCH} == "arm"
 BROKEN_OPTIONS+= OFED
 .endif