diff --git a/docs/api/single_graph.rst b/docs/api/single_graph.rst
index e0b2595..79739f3 100644
--- a/docs/api/single_graph.rst
+++ b/docs/api/single_graph.rst
@@ -1,7 +1,7 @@
 SingleGraph
 ============
 
-``SingleGraph``\ s convert a molecule into a SMIRKS pattern by
+A ``SingleGraph`` converts a molecule into a SMIRKS pattern by
 converting information about the atoms and bonds.
 The ``SingleGraph`` stores only one molecule. It can convert only certain atoms or
 the *entire* molecule into a SMIRKS pattern.