diff --git a/src/urh/signalprocessing/IQArray.py b/src/urh/signalprocessing/IQArray.py
index 09bbacb6b..81ccbb639 100644
--- a/src/urh/signalprocessing/IQArray.py
+++ b/src/urh/signalprocessing/IQArray.py
@@ -96,7 +96,7 @@ def to_bytes(self):
         return self.__data.tostring()
 
     def subarray(self, start=None, stop=None, step=None):
-        return IQArray(self[start:stop:step])
+        return IQArray(np.ascontiguousarray(self[start:stop:step]))
 
     def insert_subarray(self, pos, subarray: np.ndarray):
         if subarray.ndim == 1: