diff --git a/docs/performance.rst b/docs/performance.rst
index 33ff818f0..49a80a055 100644
--- a/docs/performance.rst
+++ b/docs/performance.rst
@@ -73,7 +73,7 @@ konsole 23.08.04   25.2    37.7    23.6  23.4   27.48
 
 In this table, each column represents different types of data. The CSI column
 is for data consisting of a mix of typical formatting escape codes and some
-ascii text.
+ASCII only text.
 
 .. note::