This is the adorable moment a girl from Napa, California broke down in tears of joy when she was given the surprise gift of a puppy.

According to the girl's mother, she had always wanted a dog but because of allergies in the family, they had never been able to get one.

After much pleading, the girl's mother finally agreed to get her a guinea pig when she returned from a school trip.

However, while the girl was on the trip, mum discovered some hypoallergenic puppies which were for sale and decided to buy one to surprise her daughter.

The emotional video begins when mum and daughter arrive at the pet store to pick up what the daughter still believes is a guinea pig.

The two browse a few accessories for guinea pigs and then, as they walk into the middle of the store, a woman approaches them holding a crate.

The daughter looks inside, sees a puppy rather than a guinea pig and bursts into tears of joy.

More tears flow as she cradles the adorable pooch and wonders out-loud "is this a dream?"

Although the video was filmed in 2016, it has only recently emerged online.

What kid doesnt want a puppy? Well my daughter has wanted a puppy for as long as i can remember, but because of allergies in the house hold/ and not finding a hypoallergenic that wasnt thousands of dollars it stopped us from getting one, and for my daughter's many attempts asking for a puppy she had to fill the emptiness with something. We have had fish and hamsters and it still didnt fill the gap. So she decided to ask for a ginnypig and this was right before her 6th grade trip to Springfield, we decided that we could get a ginnypig when she comes back from her trip , i told her with us working who was going to take care of it when were gone. So she agreed that we would go to petco as soon as she got home from her trip. Until right before she left i was on the internet and i came across this precious family of hypoallergenic puppies something told us (my other half and i)we need to get a puppy and at the time was still not in my buget but with help from family we were able to make it work, we all knew how much she has wanted one. So i messaged the seller and was able to get the puppy while my daughter was in Springfield and decide to suprise her at a animal store that does not have dogs so she would have absolutely no idea she would be getting one. As soon as i picked her up she insisted we had to go to the pet store cause i promised, lol while i had family hiding there waiting with the big suprise. She went in thinking we were getting a ginnypig so in the video she is walking around looking for things for the ginnypig. She had already picked out the one she wanted and decided to look for things for it. Then told me we have to let the worker know which one she wanted so no one else would take it, and thats when my sister and other half come in explaing that this cage that they found would be a good cage for the ginny pig until looking inside and seeing the suprise of a life time. She even says your joking me, and asked if can keep it.It was hard keeping this a secret as we picked up the puppy the day after she left and had been video chatting while she was gone so it became a little challenging making sure the puppy wasnt barking or getting in the video.we took picture meaning we had a secret for her and took videos in the car on the way home where my mother was talking about stealing the puppy, pictures of their first night together where the puppy laid over her head.