diff --git a/docs/source/io_formats/nuclear_data.rst b/docs/source/io_formats/nuclear_data.rst
index 3f03c91be..060e96c0c 100644
--- a/docs/source/io_formats/nuclear_data.rst
+++ b/docs/source/io_formats/nuclear_data.rst
@@ -173,7 +173,7 @@ Reaction Products
 :Attributes: - **particle** (*char[]*) -- Type of particle
              - **emission_mode** (*char[]*) -- Emission mode (prompt, delayed,
                total)
-             - **decay_rate** (*double*) -- Rate of decay in inverse shakes
+             - **decay_rate** (*double*) -- Rate of decay in inverse seconds
              - **n_distribution** (*int*) -- Number of angle/energy
                distributions
 :Datasets: