I created a new Line Diagram Symbol but the scale is easily 10 times larger

I wanted to create a line diagram symbol for a variable resistor. The only resistor that comes with SWE is the heating resistor. So I copied and pasted that file, then renamed it. I replaced the picture of the heating resistor with a picture of a variable resistor and saved the new file.

When I try to insert this new line diagram symbol, it's HUGE. I'd say it's easily 10 times larger than the heating resistor symbol.

How did this happen? How do I fix it?

Thank you,

Kristi

SolidworksElectrical