@@ -35,7 +35,7 @@ public void LoadNativeTypeOffsetClass()
         {
             PyObject sys = Py.Import("sys");
             // We can safely ignore the "m" abi flag
-            var abiflags = sys.GetAttr("abiflags").ToString().Replace("m", "");
+            var abiflags = sys.GetAttr("abiflags", "".ToPython()).ToString().Replace("m", "");
             if (!string.IsNullOrEmpty(abiflags))
             {
                 string typeName = "Python.Runtime.NativeTypeOffset, Python.Runtime";
 
@@ -225,8 +225,6 @@ def preprocess_python_headers():
     if hasattr(sys, "abiflags"):
         if "d" in sys.abiflags:
             defines.extend(("-D", "PYTHON_WITH_PYDEBUG"))
-        if "m" in sys.abiflags:
-            defines.extend(("-D", "PYTHON_WITH_PYMALLOC"))
         if "u" in sys.abiflags:
             defines.extend(("-D", "PYTHON_WITH_WIDE_UNICODE"))
 
@@ -245,7 +243,7 @@ def preprocess_python_headers():
 
 def gen_interop_head(writer):
     filename = os.path.basename(__file__)
-    abi_flags = getattr(sys, "abiflags", "")
+    abi_flags = getattr(sys, "abiflags", "").replace("m", "")
     py_ver = "{0}.{1}".format(PY_MAJOR, PY_MINOR)
     class_definition = """
 // Auto-generated by %s.
Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,7 @@ public void LoadNativeTypeOffsetClass()`
`35`	`35`	`{`
`36`	`36`	`PyObject sys = Py.Import("sys");`
`37`	`37`	`// We can safely ignore the "m" abi flag`
`38`		`- var abiflags = sys.GetAttr("abiflags").ToString().Replace("m", "");`
	`38`	`+ var abiflags = sys.GetAttr("abiflags", "".ToPython()).ToString().Replace("m", "");`
`39`	`39`	`if (!string.IsNullOrEmpty(abiflags))`
`40`	`40`	`{`
`41`	`41`	`string typeName = "Python.Runtime.NativeTypeOffset, Python.Runtime";`