Fix issue #305

[neurocis]

Purpose of changes

Fix issue #305 as described by @yoyole123 where screen-copy fails to start.

Types of changes

Put an x in the boxes that apply

• [ x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

How has this been tested?

Build and run.

[codecov-commenter]

Codecov Report

Merging #308 (cd6cd98) into master (0188131) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #308   +/-   ##
=======================================
  Coverage   99.23%   99.23%           
=======================================
  Files           2        2           
  Lines         130      130           
=======================================
  Hits          129      129           
  Misses          1        1           

Impacted Files	Coverage Δ
src/app.py	99.20% <100.00%> (ø)

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[neurocis]

Retracting, failure modes detected.