diff --git a/wally/suits/io/fio_job.py b/wally/suits/io/fio_job.py
index 3d4e886..6676895 100644
--- a/wally/suits/io/fio_job.py
+++ b/wally/suits/io/fio_job.py
@@ -116,11 +116,12 @@
 
     @property
     def oper(self) -> str:
-        return self.vals['rw']
+        vl = self.vals['rw']
+        return vl if ':' not in vl else vl.split(":")[0]
 
     @property
     def op_type_short(self) -> str:
-        return self.op_type2short[self.vals['rw']]
+        return self.op_type2short[self.oper]
 
     @property
     def thcount(self) -> int: