diff --git a/hapstone.cabal b/hapstone.cabal
index b2b7374..cd3c315 100644
--- a/hapstone.cabal
+++ b/hapstone.cabal
@@ -28,8 +28,10 @@ library
   build-depends:       base >= 4.7 && < 5
   default-language:    Haskell2010
   extra-libraries:     capstone
-  extra-lib-dirs:      /home/thewormkill/clones/forks/capstone/tests
-  include-dirs:        /home/thewormkill/clones/forks/capstone/include
+-- /home/thewormkill/clones/forks/capstone/tests
+  extra-lib-dirs:      /home/gregs/install/usr/local/lib
+-- /home/thewormkill/clones/forks/capstone/include
+  include-dirs:        /home/gregs/install/usr/local/include
   build-tools:         c2hs
 
 test-suite hapstone-test
diff --git a/src/Hapstone/Internal/Arm64.chs b/src/Hapstone/Internal/Arm64.chs
index 419c772..68e822d 100644
--- a/src/Hapstone/Internal/Arm64.chs
+++ b/src/Hapstone/Internal/Arm64.chs
@@ -43,8 +43,10 @@ import Foreign.C.Types
 {#enum arm64_sysreg as Arm64Sysreg {underscoreToCase}
     deriving (Show, Eq, Bounded)#}
 -- | more system registers
-{#enum arm64_msr_reg as Arm64MsrReg {underscoreToCase}
-    deriving (Show, Eq, Bounded)#}
+
+-- note that 'arm64_msr_reg' was '#if 0'ed out from capstone in commit 9d292268, "arm64: sync with LLVM 7.0.1" 2019April10
+-- {#enum arm64_msr_reg as Arm64MsrReg {underscoreToCase}
+--    deriving (Show, Eq, Bounded)#}
 
 -- | system pstate field (MSR instructions)
 {#enum arm64_pstate as Arm64Pstate {underscoreToCase}
@@ -54,8 +56,10 @@ import Foreign.C.Types
 {#enum arm64_vas as Arm64Vas {underscoreToCase}
     deriving (Show, Eq, Bounded)#}
 -- | vector element size specifier
-{#enum arm64_vess as Arm64Vess {underscoreToCase}
-    deriving (Show, Eq, Bounded)#}
+
+-- note that 'arm_64_vess' was removed from capstone in commit 9d292268, "arm64: sync with LLVM 7.0.1" 2019April10
+-- {#enum arm64_vess as Arm64Vess {underscoreToCase}
+--     deriving (Show, Eq, Bounded)#}
 
 -- | memory barrier operands
 {#enum arm64_barrier_op as Arm64BarrierOp {underscoreToCase}
@@ -121,11 +125,11 @@ data CsArm64OpValue
     | Undefined -- ^ invalid operand value, for 'Arm64OpInvalid' operand
     deriving (Show, Eq)
 
+-- note that 'vess' was removed from capstone in commit 9d292268, "arm64: sync with LLVM 7.0.1" 2019April10
 -- | instruction operand
 data CsArm64Op = CsArm64Op
     { vectorIndex :: Int32 -- ^ vector index for some vector operands, else -1
     , vas :: Arm64Vas -- ^ vector arrangement specifier
-    , vess :: Arm64Vess -- ^ vector element size specifier
     , shift :: (Arm64Shifter, Word32) -- ^ shifter type and value
     , ext :: Arm64Extender -- ^ extender type
     , value :: CsArm64OpValue -- ^ operand type and value
@@ -138,7 +142,6 @@ instance Storable CsArm64Op where
     peek p = CsArm64Op
         <$> (fromIntegral <$> {#get cs_arm64_op->vector_index#} p)
         <*> ((toEnum . fromIntegral) <$> {#get cs_arm64_op->vas#} p)
-        <*> ((toEnum . fromIntegral) <$> {#get cs_arm64_op->vess#} p)
         <*> ((,) <$>
             ((toEnum . fromIntegral) <$> {#get cs_arm64_op->shift.type#} p) <*>
             (fromIntegral <$> {#get cs_arm64_op->shift.value#} p))
@@ -162,10 +165,9 @@ instance Storable CsArm64Op where
                  (peek bP :: IO CInt)
               _ -> return Undefined
         <*> (peekByteOff p 44 :: IO Word8) -- access
-    poke p (CsArm64Op vI va ve (sh, shV) ext val acc) = do
+    poke p (CsArm64Op vI va (sh, shV) ext val acc) = do
         {#set cs_arm64_op->vector_index#} p (fromIntegral vI)
         {#set cs_arm64_op->vas#} p (fromIntegral $ fromEnum va)
-        {#set cs_arm64_op->vess#} p (fromIntegral $ fromEnum ve)
         {#set cs_arm64_op->shift.type#} p (fromIntegral $ fromEnum sh)
         {#set cs_arm64_op->shift.value#} p (fromIntegral shV)
         {#set cs_arm64_op->ext#} p (fromIntegral $ fromEnum ext)
diff --git a/test/Internal/Arm64/Default.hs b/test/Internal/Arm64/Default.hs
index 6a1a896..a78acec 100644
--- a/test/Internal/Arm64/Default.hs
+++ b/test/Internal/Arm64/Default.hs
@@ -19,16 +19,18 @@ instance Arbitrary Arm64ConditionCode where
 
 instance Arbitrary Arm64Sysreg where
     arbitrary = elements [minBound..maxBound]
-instance Arbitrary Arm64MsrReg where
-    arbitrary = elements [minBound..maxBound]
+
+--instance Arbitrary Arm64MsrReg where
+--    arbitrary = elements [minBound..maxBound]
 
 instance Arbitrary Arm64Pstate where
     arbitrary = elements [minBound..maxBound]
 
 instance Arbitrary Arm64Vas where
     arbitrary = elements [minBound..maxBound]
-instance Arbitrary Arm64Vess where
-    arbitrary = elements [minBound..maxBound]
+
+-- instance Arbitrary Arm64Vess where
+--    arbitrary = elements [minBound..maxBound]
 
 instance Arbitrary Arm64BarrierOp where
     arbitrary = elements [minBound..maxBound]
@@ -71,7 +73,7 @@ instance Arbitrary CsArm64OpValue where
 
 instance Arbitrary CsArm64Op where
     arbitrary = CsArm64Op <$> arbitrary <*> arbitrary <*> arbitrary <*>
-        arbitrary <*> arbitrary <*> arbitrary <*> arbitrary
+        arbitrary <*> arbitrary <*> arbitrary
 
 instance Arbitrary CsArm64 where
     arbitrary = CsArm64 <$> arbitrary <*> arbitrary <*> arbitrary <*>
diff --git a/test/Internal/Arm64/StorableSpec.hs b/test/Internal/Arm64/StorableSpec.hs
index fd604a3..c5aa59c 100644
--- a/test/Internal/Arm64/StorableSpec.hs
+++ b/test/Internal/Arm64/StorableSpec.hs
@@ -44,7 +44,6 @@ getCsArm64Op = do
     ptr <- mallocArray (sizeOf csArm64Op) :: IO (Ptr Word8)
     poke (castPtr ptr) (0x01234567 :: Word32)
     poke (plusPtr ptr 4) (fromIntegral $ fromEnum Arm64Vas8b :: Int32)
-    poke (plusPtr ptr 8) (fromIntegral $ fromEnum Arm64VessB :: Int32)
     poke (plusPtr ptr 12) (fromIntegral $ fromEnum Arm64SftMsl :: Int32)
     poke (plusPtr ptr 16) (0x01234567 :: Word32)
     poke (plusPtr ptr 20) (fromIntegral $ fromEnum Arm64ExtUxtb :: Int32)
@@ -54,7 +53,7 @@ getCsArm64Op = do
     peek (castPtr ptr) <* free ptr
 
 csArm64Op :: CsArm64Op
-csArm64Op = CsArm64Op 0x01234567 Arm64Vas8b Arm64VessB
+csArm64Op = CsArm64Op 0x01234567 Arm64Vas8b 
     (Arm64SftMsl, 0x01234567) Arm64ExtUxtb (Imm 0x0123456789abcdef) 0x1
 
 csArm64OpSpec :: Spec