diff --git a/docs/source_docs/user_guide/inputs/solids_model.rst b/docs/source_docs/user_guide/inputs/solids_model.rst
index 5e15bec41a5e59404480f5ac1e8755b1ced4518e..ecae491772dc4cb8d2e9216bde0ea9a5c735855a 100644
--- a/docs/source_docs/user_guide/inputs/solids_model.rst
+++ b/docs/source_docs/user_guide/inputs/solids_model.rst
@@ -22,7 +22,7 @@ models. The following inputs are defined with the prefix  ``solids``:
 Molecular weight
 ----------------
 
-The following inputs are defined with the prefix  ``[solid_name]``:
+The following inputs is defined with the prefix  ``[solid_name]``:
 
 +----------------------------+--------------------------------------------------------------+----------+----------+
 |                            | Description                                                  |   Type   | Default  |