diff --git a/plugins/rack/uwsgiplugin.py b/plugins/rack/uwsgiplugin.py
index 2375bc9..b908417 100644
--- a/plugins/rack/uwsgiplugin.py
+++ b/plugins/rack/uwsgiplugin.py
@@ -10,13 +10,14 @@ except:
 rbconfig = 'Config'
 
 version = os.popen(RUBYPATH + " -e \"print RUBY_VERSION\"").read().rstrip()
-v = version.split('.')
 
 GCC_LIST = ['rack_plugin', 'rack_api']
 
-if (v[0] == '1' and v[1] == '9') or v[0] >= '2':
+if version >= '1.9':
     CFLAGS = os.popen(RUBYPATH + " -e \"require 'rbconfig';print RbConfig::CONFIG['CFLAGS']\"").read().rstrip().split()
     CFLAGS.append('-DRUBY19')
+    if version >= '2.0':
+        CFLAGS.append('-DRUBY20')
     CFLAGS.append('-Wno-unused-parameter')
     rbconfig = 'RbConfig'	 
 else:
diff --git a/plugins/ruby19/uwsgiplugin.py b/plugins/ruby19/uwsgiplugin.py
index 4f35984..156018f 100644
--- a/plugins/ruby19/uwsgiplugin.py
+++ b/plugins/ruby19/uwsgiplugin.py
@@ -10,13 +10,14 @@ except:
 rbconfig = 'Config'
 
 version = os.popen(RUBYPATH + " -e \"print RUBY_VERSION\"").read().rstrip()
-v = version.split('.')
 
 GCC_LIST = ['../rack/rack_plugin', '../rack/rack_api']
 
-if v[0] == '1' and v[1] == '9':
+if version >= '1.9':
     CFLAGS = os.popen(RUBYPATH + " -e \"require 'rbconfig';print RbConfig::CONFIG['CFLAGS']\"").read().rstrip().split()
     CFLAGS.append('-DRUBY19')
+    if version >= '2.0':
+        CFLAGS.append('-DRUBY20')
     CFLAGS.append('-Wno-unused-parameter')
     rbconfig = 'RbConfig'	 
 else: