diff --git a/README.md b/README.md
index 4034094f3b76e565db72c4abd8b8023bffedfae5..7a7c50d9902db9f8d5f9f76504a971f7bb26ebc7 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,8 @@ Optional dependencies:
 - [pyFFTW](https://pypi.python.org/pypi/pyFFTW) for faster Fourier transforms
 - [pyHealpix](https://gitlab.mpcdf.mpg.de/ift/pyHealpix) (for harmonic
     transforms involving domains on the sphere)
+- [nifty_gridder](https://gitlab.mpcdf.mpg.de/ift/nifty_gridder) (for radio
+    interferometry responses)
 - [mpi4py](https://mpi4py.scipy.org) (for MPI-parallel execution)
 - [matplotlib](https://matplotlib.org/) (for field plotting)
 
@@ -97,6 +99,10 @@ Support for spherical harmonic transforms is added via:
 
     pip3 install --user git+https://gitlab.mpcdf.mpg.de/ift/pyHealpix.git
 
+Support for the radio interferometry gridder is added via:
+
+    pip3 install git+https://gitlab.mpcdf.mpg.de/ift/nifty_gridder.git
+
 MPI support is added via:
 
     sudo apt-get install python3-mpi4py
diff --git a/docs/source/installation.rst b/docs/source/installation.rst
index 23b3488890b17b3cdcc3170f5ba8e398999101e1..cc5d3d5ba5b0e6ac7cf82489145dbb21964b3494 100644
--- a/docs/source/installation.rst
+++ b/docs/source/installation.rst
@@ -35,6 +35,10 @@ Support for spherical harmonic transforms is added via::
 
     pip3 install --user git+https://gitlab.mpcdf.mpg.de/ift/pyHealpix.git
 
+Support for the radio interferometry gridder is added via:
+
+    pip3 install git+https://gitlab.mpcdf.mpg.de/ift/nifty_gridder.git
+
 MPI support is added via::
 
     sudo apt-get install python3-mpi4py