diff --git a/share/completions/comp.fish b/share/completions/comp.fish
new file mode 100644
index 000000000..f24f3753f
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+++ b/share/completions/comp.fish
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+function __comp_generate_args --description 'Function to generate args'
+  echo -e '/d\tShow differences in decimal format
+/a\tShow differences as characters
+/l\tShow the numbe
+r of the line where a difference occurs, instead of displaying the byte offset
+/n=\tCompare only the number of lines that are specified for each file, even if the files are different sizes
+/c\tPerform a comparison that is not case-sensitive
+/off\tProcess files with the offline attribute set
+/offline\tProcess files with the offline attribute set
+/?\tShow help'
+end
+
+complete --command comp --no-files --arguments '(__comp_generate_args)'