diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2e833a1..15070bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+- 0.4.9 & 0.4.10
+  - Fix ismrmrd export
 - 0.4.8
   - New `backend="pulseq_rs"` option on `Sequence.import_file` that parses
     `.seq` files through [pulseq-rs](https://github.com/pulseq-frame/pulseq-rs)
diff --git a/Cargo.lock b/Cargo.lock
index 2575ddb..4001cb5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -65,7 +65,7 @@ dependencies = [
 
 [[package]]
 name = "mrzero_core"
-version = "0.4.6"
+version = "0.4.10"
 dependencies = [
  "num-complex",
  "pulseq-rs",
diff --git a/Cargo.toml b/Cargo.toml
index 9a96944..62804fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mrzero_core"
-version = "0.4.6"
+version = "0.4.10"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/pyproject.toml b/pyproject.toml
index 1cb906a..c4b8a45 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "mrzerocore"
-version = "0.4.8"
+version = "0.4.10"
 description = "Core functionality of MRzero"
 authors = [
     {name = "Jonathan Endres", email = "jonathan.endres@uk-erlangen.de"},
diff --git a/python/MRzeroCore/simulation/sig_to_mrd.py b/python/MRzeroCore/simulation/sig_to_mrd.py
index 36b2aed..45aec2b 100644
--- a/python/MRzeroCore/simulation/sig_to_mrd.py
+++ b/python/MRzeroCore/simulation/sig_to_mrd.py
@@ -264,32 +264,33 @@ def s_to_ms(x_in_s):
     seq_fov = [m_to_mm(val) for val in seq.definitions.get("FOV", [1, 1, 1])]
     seq_labels = seq.evaluate_labels(evolution="adc")
 
-    mrd_enc_params = ismrmrd.xsd.encodingType()
-
-    mrd_enc_params.encodedSpace = ismrmrd.xsd.encodingSpaceType(
-        matrixSize=ismrmrd.xsd.matrixSizeType(
-            x=seq_res[0],
-            y=seq_res[1],
-            z=seq_res[2],
-        ),
-        fieldOfView_mm=ismrmrd.xsd.fieldOfViewMm(
-            x=seq_fov[0],
-            y=seq_fov[1],
-            z=seq_fov[2],
-        ),
-    )
-
-    mrd_enc_params.reconSpace = ismrmrd.xsd.encodingSpaceType(
-        matrixSize=ismrmrd.xsd.matrixSizeType(
-            x=seq_res[0],
-            y=seq_res[1],
-            z=seq_res[2],
+    mrd_enc_params = ismrmrd.xsd.encodingType(
+        encodedSpace=ismrmrd.xsd.encodingSpaceType(
+            matrixSize=ismrmrd.xsd.matrixSizeType(
+                x=seq_res[0],
+                y=seq_res[1],
+                z=seq_res[2],
+            ),
+            fieldOfView_mm=ismrmrd.xsd.fieldOfViewMm(
+                x=seq_fov[0],
+                y=seq_fov[1],
+                z=seq_fov[2],
+            ),
         ),
-        fieldOfView_mm=ismrmrd.xsd.fieldOfViewMm(
-            x=seq_fov[0],
-            y=seq_fov[1],
-            z=seq_fov[2],
+        reconSpace=ismrmrd.xsd.encodingSpaceType(
+            matrixSize=ismrmrd.xsd.matrixSizeType(
+                x=seq_res[0],
+                y=seq_res[1],
+                z=seq_res[2],
+            ),
+            fieldOfView_mm=ismrmrd.xsd.fieldOfViewMm(
+                x=seq_fov[0],
+                y=seq_fov[1],
+                z=seq_fov[2],
+            ),
         ),
+        encodingLimits=_labels_to_encodinglimits(seq_labels),
+        trajectory=ismrmrd.xsd.trajectoryType.OTHER
     )
 
     if verbose > 4:
@@ -299,16 +300,17 @@ def s_to_ms(x_in_s):
         print(
             f"Wrote encode/recon RES to mrd header with {mrd_enc_params.encodedSpace.fieldOfView_mm}/{mrd_enc_params.reconSpace.fieldOfView_mm}"
         )
-
-    mrd_enc_params.encodingLimits = _labels_to_encodinglimits(seq_labels)
     
     # The Lamour frequency is a required field in the ISMRMRD header
-    exp = ismrmrd.xsd.experimentalConditionsType()
-    exp.H1resonanceFrequency_Hz = int(seq.system.B0 * 42.5764 * 1e6)
+    exp = ismrmrd.xsd.experimentalConditionsType(
+        H1resonanceFrequency_Hz=int(seq.system.B0 * 42.5764 * 1e6)
+    )
 
     mrd_head = ismrmrd.xsd.ismrmrdHeader(
         experimentalConditions=exp,
-        measurementInformation=ismrmrd.xsd.measurementInformationType(),
+        measurementInformation=ismrmrd.xsd.measurementInformationType(
+            patientPosition=ismrmrd.xsd.patientPositionType.HFS
+        ),
         acquisitionSystemInformation=ismrmrd.xsd.acquisitionSystemInformationType(),
         sequenceParameters=mrd_seq_params,
         encoding=[mrd_enc_params],