diff --git a/gas/testsuite/gas/s390/zarch-z10.d b/gas/testsuite/gas/s390/zarch-z10.d
index 412f2b582c..e60ec51554 100644
--- a/gas/testsuite/gas/s390/zarch-z10.d
+++ b/gas/testsuite/gas/s390/zarch-z10.d
@@ -385,5 +385,4 @@ Disassembly of section .text:
 .*:	b2 e0 00 67 [	 ]*scctr	%r6,%r7
 .*:	b2 e1 00 67 [	 ]*spctr	%r6,%r7
 .*:	b2 80 6d 05 [	 ]*lpp	3333\(%r6\)
-.*:	b9 28 00 00 [	 ]*pckmo
 .*:	07 07 [	 ]*nopr	%r7
diff --git a/gas/testsuite/gas/s390/zarch-z10.s b/gas/testsuite/gas/s390/zarch-z10.s
index 0c18cd2a9d..bd292e998a 100644
--- a/gas/testsuite/gas/s390/zarch-z10.s
+++ b/gas/testsuite/gas/s390/zarch-z10.s
@@ -379,4 +379,3 @@ foo:
 	scctr	%r6,%r7
 	spctr	%r6,%r7
 	lpp	3333(%r6)
-	pckmo
diff --git a/gas/testsuite/gas/s390/zarch-z196.d b/gas/testsuite/gas/s390/zarch-z196.d
index 26ab7ae502..3889d32e02 100644
--- a/gas/testsuite/gas/s390/zarch-z196.d
+++ b/gas/testsuite/gas/s390/zarch-z196.d
@@ -258,4 +258,5 @@ Disassembly of section .text:
 .*:	b9 2b 00 56 [	 ]*kmo	%r5,%r6
 .*:	b9 2c 00 00 [	 ]*pcc
 .*:	b9 2d 60 59 [	 ]*kmctr	%r5,%r6,%r9
+.*:	b9 28 00 00 [	 ]*pckmo
 .*:	07 07 [	 ]*nopr	%r7
diff --git a/gas/testsuite/gas/s390/zarch-z196.s b/gas/testsuite/gas/s390/zarch-z196.s
index 887cb81f8f..31be5a62db 100644
--- a/gas/testsuite/gas/s390/zarch-z196.s
+++ b/gas/testsuite/gas/s390/zarch-z196.s
@@ -260,3 +260,4 @@ foo:
 	kmo %r5,%r6
 	pcc
 	kmctr %r5,%r6,%r9
+	pckmo
diff --git a/opcodes/s390-opc.txt b/opcodes/s390-opc.txt
index 51a17f3b37..36ad2e7d7a 100644
--- a/opcodes/s390-opc.txt
+++ b/opcodes/s390-opc.txt
@@ -976,7 +976,6 @@ b286 qsi S_RD "query sampling information" z10 zarch
 b2e0 scctr RRE_RR "set cpu counter" z10 zarch
 b2e1 spctr RRE_RR "set peripheral counter" z10 zarch
 b280 lpp S_RD "load program parameter" z10 zarch
-b928 pckmo RRE_00 "perform cryptographic key management operation" z10 zarch
 
 # The new instructions of the IBM zEnterprise z196
 b9c8 ahhhr RRF_R0RR2 "add high high" z196 zarch
@@ -1116,6 +1115,7 @@ b92a kmf RRE_RR "cipher message with CFB" z196 zarch
 b92b kmo RRE_RR "cipher message with OFB" z196 zarch
 b92c pcc RRE_00 "perform cryptographic computation" z196 zarch
 b92d kmctr RRF_R0RR "cipher message with counter" z196 zarch
+b928 pckmo RRE_00 "perform cryptographic key management operation" z196 zarch
 
 # The new instructions of the IBM zEnterprise EC12
 b2ec etnd RRE_R0 "extract transaction nesting depth" zEC12 zarch htm