diff --git a/vampyre/estim/gaussian.py b/vampyre/estim/gaussian.py
index b545f79..34ea067 100644
--- a/vampyre/estim/gaussian.py
+++ b/vampyre/estim/gaussian.py
@@ -42,9 +42,9 @@ def __init__(self, zmean, zvar, shape,name=None,\
         if np.isscalar(shape):
             shape = (shape,)
         if is_complex:
-            dtype = np.double
+            dtype = np.complex128
         else:
-            dtype = np.complex
+            dtype = np.double
              
         BaseEst.__init__(self,shape=shape,dtype=dtype,name=name,
                          var_axes=var_axes,type_name='GaussEst', cost_avail=True)
diff --git a/vampyre/trans/convolve2d.py b/vampyre/trans/convolve2d.py
index 94bca96..ac9497c 100644
--- a/vampyre/trans/convolve2d.py
+++ b/vampyre/trans/convolve2d.py
@@ -67,7 +67,7 @@ def __init__(self,shape,kernel,is_complex=False,im_axes=(0,1)):
         self.srep_axes = self.chan_axes
         
         # Superclass constructor
-        dtype = np.float
+        dtype = np.float64
         BaseLinTrans.__init__(self, shape, shape, dtype, dtype,\
                               svd_avail=True,name='Convolve2D')