I am unable to add #include<servo.h> in my Arduino uno

I am unable to add the header #include<servo.h> on to my header on an Arduino UNO board. It comes with Compiling error.
Can any one help me please?
Your help is much appreciated.

Try it with Servo.h.
C++ is case sensitive.

If you use Sketch:Include Library to add it, you will see the correct nomenclature.

Thank you very much for the suggestion and it works without any compiling error.
Thank you!

C++ is case sensitive.

Except when processing #include directives

The implementation may ignore distinctions of alphabetical case

However, arduino-builder seems to look for an exact match when it is searching for libraries.