diff --git a/+SDF/save.m b/+SDF/save.m
index 98b1e26..8725a7b 100644
--- a/+SDF/save.m
+++ b/+SDF/save.m
@@ -108,6 +108,8 @@ function save(filename, root)
     elseif islogical(data)
         h5_type = 'H5T_NATIVE_INT';
         data = int32(data);
+    elseif isa(data, 'single')
+        h5_type = 'H5T_NATIVE_FLOAT';
     else
         h5_type = 'H5T_NATIVE_DOUBLE'; 
     end