diff --git a/arch/X86/X86MappingInsn.inc b/arch/X86/X86MappingInsn.inc
index 906dc07a..0703eb82 100644
--- a/arch/X86/X86MappingInsn.inc
+++ b/arch/X86/X86MappingInsn.inc
@@ -18808,7 +18808,7 @@
 {
 	X86_TEST64mr, X86_INS_TEST, 1,
 #ifndef CAPSTONE_DIET
-	{ 0 }, { 0 }, { 0 }, 0, 0
+	{ 0 }, { X86_REG_EFLAGS, 0 }, { 0 }, 0, 0
 #endif
 },
 
diff --git a/arch/X86/X86MappingInsnOp.inc b/arch/X86/X86MappingInsnOp.inc
index 582d4414..76f10544 100644
--- a/arch/X86/X86MappingInsnOp.inc
+++ b/arch/X86/X86MappingInsnOp.inc
@@ -13434,8 +13434,8 @@
 },
 
 {	/* X86_TEST64mr, X86_INS_TEST: test */
-	0,
-	{ 0 }
+	X86_EFLAGS_RESET_OF | X86_EFLAGS_MODIFY_SF | X86_EFLAGS_MODIFY_ZF | X86_EFLAGS_UNDEFINED_AF | X86_EFLAGS_MODIFY_PF | X86_EFLAGS_RESET_CF,
+	{ CS_AC_READ, CS_AC_READ, 0 }
 },
 
 {	/* X86_TEST64ri32, X86_INS_TEST: test */
diff --git a/suite/cstest/issues.cs b/suite/cstest/issues.cs
index 699bbe5f..20f4a850 100644
--- a/suite/cstest/issues.cs
+++ b/suite/cstest/issues.cs
@@ -1043,3 +1043,6 @@
 !# CS_ARCH_ARM64, CS_MODE_LITTLE_ENDIAN, None
 0x0: 0x00,0x00,0x00,0x4c == st4 {v0.16b, v1.16b, v2.16b, v3.16b}, [x0]
 
+!# issue 2128
+!# CS_ARCH_X86, CS_MODE_64, CS_OPT_DETAIL
+0x0: 0x4c,0x85,0x7d,0x30 == test	qword ptr [rbp + 0x30], r15 ; operands[1].type: REG = r15 ; operands[1].access: READ ; Registers read: rbp r15 ; Registers modified: rflags