diff --git a/src/aspire/volume/volume.py b/src/aspire/volume/volume.py
index 8339d8c28a..6988cd563b 100644
--- a/src/aspire/volume/volume.py
+++ b/src/aspire/volume/volume.py
@@ -607,9 +607,13 @@ def rotate(self, rot_matrices, zero_nyquist=True):
                 f"{self.__class__.__name__}"
                 f" rot_matrices.dtype {rot_matrices.dtype}"
                 f" != self.dtype {self.dtype}."
-                " In the future this will raise an error."
+                f" rot_matrices will be cast to {self.dtype}."
             )
 
+        # Enforce `rots_inverted.dtype` is always `vol.dtype`
+        # On mismatch the above warning should have been emitted.
+        rots_inverted = rots_inverted.astype(self.dtype, copy=False)
+
         # If K = 1 we broadcast the single Rotation object across each volume.
         if K == 1:
             pts_rot = rotated_grids_3d(self.resolution, rots_inverted)