diff --git a/+io/+config/+internal/computeChunkSizeFromConfig.m b/+io/+config/+internal/computeChunkSizeFromConfig.m
index 14f0d7d7..fdfa5a34 100644
--- a/+io/+config/+internal/computeChunkSizeFromConfig.m
+++ b/+io/+config/+internal/computeChunkSizeFromConfig.m
@@ -23,7 +23,7 @@
     numDimensions = numel(dataSize);
 
     % Extract relevant configuration parameters
-    chunkDimensions = squeeze(chunkSpecification.data.chunk_dimensions);
+    chunkDimensions = chunkSpecification.data.chunk_dimensions;
     defaultChunkSize = chunkSpecification.chunk_default_size; % in bytes
     dataByteSize = io.config.internal.getDataByteSize(A);
 
diff --git a/+io/+config/applyChunkConfiguration.m b/+io/+config/applyChunkConfiguration.m
index 6f59fb45..e0d0856e 100644
--- a/+io/+config/applyChunkConfiguration.m
+++ b/+io/+config/applyChunkConfiguration.m
@@ -29,7 +29,7 @@ function applyChunkConfiguration(nwbObject, chunkConfiguration)
         dataTypeChunkOptions = io.config.internal.resolveDataTypeChunkConfig(chunkConfiguration, thisNwbObject);
 
         if isprop(thisNwbObject, 'data')
-            if ~isa(thisNwbObject.data, 'types.untyped.DataPipe')
+            if isnumeric(thisNwbObject.data)
                 % Create a datapipe object for the property value.
                 dataByteSize = io.config.internal.getDataByteSize(thisNwbObject.data);
                 if dataByteSize > dataTypeChunkOptions.chunk_default_size