diff --git a/gas/testsuite/gas/aarch64/sysreg/armv8_9-a-sysregs.d b/gas/testsuite/gas/aarch64/sysreg/armv8_9-a-sysregs.d
index e420f7077a6..4c19a501a3f 100644
--- a/gas/testsuite/gas/aarch64/sysreg/armv8_9-a-sysregs.d
+++ b/gas/testsuite/gas/aarch64/sysreg/armv8_9-a-sysregs.d
@@ -7,8 +7,8 @@
 Disassembly of section \.text:
 
 0+ <.*>:
-.*:	d51c9a83 	msr	pmsdsfr_el1, x3
-.*:	d53c9a83 	mrs	x3, pmsdsfr_el1
+.*:	d5189a83 	msr	pmsdsfr_el1, x3
+.*:	d5389a83 	mrs	x3, pmsdsfr_el1
 .*:	d5385340 	mrs	x0, erxgsr_el1
 .*:	d5181063 	msr	sctlr2_el1, x3
 .*:	d5381063 	mrs	x3, sctlr2_el1
diff --git a/opcodes/aarch64-sys-regs.def b/opcodes/aarch64-sys-regs.def
index c47563c1f1a..10b57c11e19 100644
--- a/opcodes/aarch64-sys-regs.def
+++ b/opcodes/aarch64-sys-regs.def
@@ -741,7 +741,7 @@
   SYSREG ("pmscr_el1",		CPENC (3,0,9,9,0),	F_ARCHEXT,		AARCH64_FEATURE (PROFILE))
   SYSREG ("pmscr_el12",		CPENC (3,5,9,9,0),	F_ARCHEXT,		AARCH64_FEATURE (PROFILE))
   SYSREG ("pmscr_el2",		CPENC (3,4,9,9,0),	F_ARCHEXT,		AARCH64_FEATURE (PROFILE))
-  SYSREG ("pmsdsfr_el1",	CPENC (3,4,9,10,4),	F_ARCHEXT,		AARCH64_FEATURE (SPE_FDS))
+  SYSREG ("pmsdsfr_el1",	CPENC (3,0,9,10,4),	F_ARCHEXT,		AARCH64_FEATURE (SPE_FDS))
   SYSREG ("pmselr_el0",		CPENC (3,3,9,12,5),	0,			AARCH64_NO_FEATURES)
   SYSREG ("pmsevfr_el1",	CPENC (3,0,9,9,5),	F_ARCHEXT,		AARCH64_FEATURE (PROFILE))
   SYSREG ("pmsfcr_el1",		CPENC (3,0,9,9,4),	F_ARCHEXT,		AARCH64_FEATURE (PROFILE))