A pxt of the new sign showing the way to Argyll East School, sent by cellphone to principal Craig Henderson by an amused parent, was "a bit of a laugh".
The sign, which Mr Henderson had requested, was put up this week, directly under the Argyll Rd sign, and read: "Arglly East School".
"This was obviously someone who didn't go to Argyll East," Mr Henderson said.
"The person who put it up either took no notice of the road sign above, or didn't make the connection - it really is a good giggle."
Students from the school also took a light-hearted approach to the misprinted sign.
"I showed it to the senior class and they thought it was great," Mr Henderson said.
The sign has been removed to be fixed.