Fix Windows 10 build

[chidiwilliams]

Resolves #383

[codecov]

Codecov Report

Merging #431 (30f58b6) into main (6528bbc) will decrease coverage by 0.09%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #431      +/-   ##
==========================================
- Coverage   77.34%   77.25%   -0.09%     
==========================================
  Files          29       29              
  Lines        2423     2423              
==========================================
- Hits         1874     1872       -2     
- Misses        549      551       +2     

Flag	Coverage Δ
Linux	76.43% <100.00%> (ø)
Windows	76.72% <100.00%> (ø)
macOS	75.23% <100.00%> (-0.09%)	⬇️

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Impacted Files	Coverage Δ
buzz/widgets/models_preferences_widget.py	83.14% <100.00%> (ø)

... and 1 file with indirect coverage changes

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