diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet64_smp_defconfig
index 7ac1f76c65a62d0b5aa35b52e5702e5bbafe3833..fa94fb3bb44db843e41a99c3f97799b99cac811f 100644
--- a/arch/powerpc/configs/corenet64_smp_defconfig
+++ b/arch/powerpc/configs/corenet64_smp_defconfig
@@ -28,6 +28,7 @@ CONFIG_T4240_QDS=y
 # CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set
 CONFIG_BINFMT_MISC=m
 CONFIG_MATH_EMULATION=y
+CONFIG_MATH_EMULATION_HW_UNIMPLEMENTED=y
 CONFIG_FSL_IFC=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_PCI_MSI=y