diff --git a/cystatsd/collector/statsd_proto.cpp b/cystatsd/collector/statsd_proto.cpp
index dfd900a..b702050 100644
--- a/cystatsd/collector/statsd_proto.cpp
+++ b/cystatsd/collector/statsd_proto.cpp
@@ -1,5 +1,6 @@
 #include "statsd_proto.hpp"
 #include <cstring>
+#define __STDC_FORMAT_MACROS
 #include <inttypes.h>
 
 using namespace std;
diff --git a/setup.py b/setup.py
index 57c40b8..1abe46b 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,8 @@
-from Cython.Build import cythonize
+try:
+    from Cython.Build import cythonize
+except ImportError:
+    cythonize = lambda ext: [ext]
+
 from distutils.core import setup, Extension
 
 OPTIMIZED = '-O2'