diff --git a/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/{{=machine}}.conf b/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/{{=machine}}.conf
index 782ac217d9..d7e53bd551 100644
--- a/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/{{=machine}}.conf
+++ b/scripts/lib/bsp/substrate/target/arch/qemu/conf/machine/{{=machine}}.conf
@@ -37,7 +37,7 @@ require conf/machine/include/qemu.inc
 require conf/machine/include/tune-arm926ejs.inc
 {{ if qemuarch == "powerpc": }}
 require conf/machine/include/qemu.inc
-require conf/machine/include/tune-ppc603e.inc
+require conf/machine/include/tune-ppc7400.inc
 {{ if qemuarch == "mips": }}
 require conf/machine/include/qemu.inc
 require conf/machine/include/tune-mips32.inc