diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def
index fbce05cb3d2be062f46d1c98dce18f247ea3be71..54ef105811cd2c507ae556c464c2ff27bdd8dddc 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -113,8 +113,8 @@ AARCH64_CORE("tsv110",  tsv110, tsv110, 8_2A,  AARCH64_FL_FOR_ARCH8_2 | AARCH64_
 /* ARMv8.4-A Architecture Processors.  */
 
 /* ARM ('A') cores. */
-AARCH64_CORE("zeus", zeus, cortexa57, 8_4A,  AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RCPC | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS, neoversev1, 0x41, 0xd40, -1)
-AARCH64_CORE("neoverse-v1", neoversev1, cortexa57, 8_4A,  AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RCPC | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS, neoversev1, 0x41, 0xd40, -1)
+AARCH64_CORE("zeus", zeus, cortexa57, 8_4A,  AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RNG | AARCH64_FL_RCPC | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS, neoversev1, 0x41, 0xd40, -1)
+AARCH64_CORE("neoverse-v1", neoversev1, cortexa57, 8_4A,  AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_SVE | AARCH64_FL_RNG | AARCH64_FL_RCPC | AARCH64_FL_F16 | AARCH64_FL_PROFILE | AARCH64_FL_SSBS, neoversev1, 0x41, 0xd40, -1)
 
 
 /* Qualcomm ('Q') cores. */