diff --git a/checks/system/unix.py b/checks/system/unix.py
index c37af3c3..58c72626 100644
--- a/checks/system/unix.py
+++ b/checks/system/unix.py
@@ -39,7 +39,7 @@ class IO(Check):
         self.value_re = re.compile(r'\d+\.\d+')
 
     def _parse_linux2(self, output):
-        recentStats = output.split('Device:')[2].split('\n')
+        recentStats = output.split('Device')[2].split('\n')
         header = recentStats[0]
         headerNames = re.findall(self.header_re, header)
         device = None
@@ -123,14 +123,14 @@ class IO(Check):
 
                 #                 Linux 2.6.32-343-ec2 (ip-10-35-95-10)   12/11/2012      _x86_64_        (2 CPU)
                 #
-                # Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
+                # Device         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
                 # sda1              0.00    17.61    0.26   32.63     4.23   201.04    12.48     0.16    4.81   0.53   1.73
                 # sdb               0.00     2.68    0.19    3.84     5.79    26.07    15.82     0.02    4.93   0.22   0.09
                 # sdg               0.00     0.13    2.29    3.84   100.53    30.61    42.78     0.05    8.41   0.88   0.54
                 # sdf               0.00     0.13    2.30    3.84   100.54    30.61    42.78     0.06    9.12   0.90   0.55
                 # md0               0.00     0.00    0.05    3.37     1.41    30.01    18.35     0.00    0.00   0.00   0.00
                 #
-                # Device:         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
+                # Device         rrqm/s   wrqm/s     r/s     w/s    rkB/s    wkB/s avgrq-sz avgqu-sz   await  svctm  %util
                 # sda1              0.00     0.00    0.00   10.89     0.00    43.56     8.00     0.03    2.73   2.73   2.97
                 # sdb               0.00     0.00    0.00    2.97     0.00    11.88     8.00     0.00    0.00   0.00   0.00
                 # sdg               0.00     0.00    0.00    0.00     0.00     0.00     0.00     0.00    0.00   0.00   0.00