diff --git a/bdshemu/bdshemu.c b/bdshemu/bdshemu.c
index 4a4e4a6..d2926ca 100644
--- a/bdshemu/bdshemu.c
+++ b/bdshemu/bdshemu.c
@@ -2226,9 +2226,14 @@ ShemuEmulate(
             break;
 
         case ND_INS_NEG:
-            GET_OP(Context, 0, &dst);
-            dst.Value.Qwords[0] = 0 - dst.Value.Qwords[0];
-            SET_OP(Context, 0, &dst);
+            GET_OP(Context, 0, &src);
+            dst.Size = src.Size;
+            dst.Value.Qwords[0] = 0;
+            res.Size = src.Size;
+            res.Value.Qwords[0] = dst.Value.Qwords[0] - src.Value.Qwords[0];
+            SET_OP(Context, 0, &res);
+            SET_FLAGS(Context, res, dst, src, FM_SUB);
+            SET_FLAG(Context, NDR_RFLAG_CF, src.Value.Qwords[0] != 0);
             break;
 
         case ND_INS_BT:
diff --git a/bdshemu_test/bdshemu_test.zip b/bdshemu_test/bdshemu_test.zip
index 973c7aa..fcddd80 100644
Binary files a/bdshemu_test/bdshemu_test.zip and b/bdshemu_test/bdshemu_test.zip differ
diff --git a/inc/version.h b/inc/version.h
index 3a2d5a5..4060e9b 100644
--- a/inc/version.h
+++ b/inc/version.h
@@ -7,6 +7,6 @@
 
 #define DISASM_VERSION_MAJOR        1
 #define DISASM_VERSION_MINOR        34
-#define DISASM_VERSION_REVISION     0
+#define DISASM_VERSION_REVISION     1
 
 #endif // DISASM_VER_H
diff --git a/pybddisasm/setup.py b/pybddisasm/setup.py
index 7cafe38..1a5abd4 100644
--- a/pybddisasm/setup.py
+++ b/pybddisasm/setup.py
@@ -12,7 +12,7 @@ from setuptools import find_packages, setup, Command, Extension, Distribution
 from codecs import open
 
 VERSION = (0, 1, 3)
-LIBRARY_VERSION = (1, 34, 0)
+LIBRARY_VERSION = (1, 34, 1)
 LIBRARY_INSTRUX_SIZE = 864
 
 packages = ['pybddisasm']