--- a/base/system/sys_info.cc
+++ b/base/system/sys_info.cc
@@ -255,6 +255,8 @@
   return "ARM";
 #elif defined(ARCH_CPU_ARM64)
   return "ARM_64";
+#elif defined(ARCH_CPU_PPC64)
+  return "PPC_64";
 #elif defined(ARCH_CPU_RISCV64)
   return "RISCV_64";
 #else