diff --git a/share/functions/fish_vi_key_bindings.fish b/share/functions/fish_vi_key_bindings.fish
index 00c279cdf..4738fde85 100644
--- a/share/functions/fish_vi_key_bindings.fish
+++ b/share/functions/fish_vi_key_bindings.fish
@@ -262,6 +262,12 @@ function fish_vi_key_bindings --description 'vi-like key bindings for fish'
     bind -s --preset -M replace_one -m default escape cancel repaint-mode
     bind -s --preset -M replace_one -m default ctrl-\[ cancel repaint-mode
 
+    #
+    # increment or decrement numbers with ctrl+x ctrl+a
+    #
+    bind -s --preset -M default \ca '__fish_inc_dec_number_under_cursor increase'
+    bind -s --preset -M default \cx '__fish_inc_dec_number_under_cursor decrease'
+
     #
     # Uppercase R, enters replace mode
     #