Calculating the mode, excluding zeros, of a range of cells in another worksheet

[alexdrans]

I am attempting to (see title), but it's not producing the result I expect. My formula is;

=MODE(IF('Jun 2014 Summary'!H6:H81<>0,'Jun 2014 Summary'!H6:H81))

The result I get is 0, but I'm not sure why. Help.

 

[alexdrans]

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