diff --git a/stress-ng.spec b/stress-ng.spec
index d7b29ea..f10ed22 100644
--- a/stress-ng.spec
+++ b/stress-ng.spec
@@ -31,6 +31,8 @@ system kernel interfaces.
 
 %prep
 %autosetup -n %{name}-%{version}
+# darn is not supported in Power ISA < 3.0, while Fedora aims for Power ISA 2.07
+sed 's/ASM_SPARC_RDPR ASM_SPARC_TICK ASM_PPC64_DARN ASM_PPC64_DCBST/ASM_SPARC_RDPR ASM_SPARC_TICK ASM_PPC64_DCBST/' Makefile.config
 
 %build
 %make_build