diff --git a/doc/source/installation.rst b/doc/source/installation.rst
index 63e44c0..f513609 100644
--- a/doc/source/installation.rst
+++ b/doc/source/installation.rst
@@ -24,7 +24,7 @@ First, let's install PyTorch.
 
 To install ``torch-scatter``, we need to check the version of PyTorch and CUDA.
 
-We can get the version of PyTorch by ``python3 -c "import torch; print(torch.__version__")``.
+We can get the version of PyTorch by ``python3 -c "import torch; print(torch.__version__)"``.
 The version of CUDA can be get by ``nvcc -V``. For example, if our PyTorch is ``1.8.0``
 and CUDA is ``10.2``, the command should be
 
@@ -101,4 +101,4 @@ for more details.
 	pip install git+https://github.com/rusty1s/pytorch_cluster.git
 	pip install torchdrug
 
-Note TorchDrug runs on Apple silicon CPUs, but doesn't support `mps` devices.
\ No newline at end of file
+Note TorchDrug runs on Apple silicon CPUs, but doesn't support `mps` devices.