diff --git a/gnuradio.spec b/gnuradio.spec
index 494df4e..c493914 100644
--- a/gnuradio.spec
+++ b/gnuradio.spec
@@ -147,7 +147,12 @@ GNU Radio examples
 %{?mfpu_neon}
 #-DENABLE_DOXYGEN=FALSE \
 
-%cmake_build
+# Dirty workaround for segfaults on the ppc64le
+%ifarch ppc64le
+%global build_opt -j1
+%endif
+
+%cmake_build %{?build_opt}
 
 %install
 %cmake_install