diff --git a/doc/src/compute_saed.rst b/doc/src/compute_saed.rst
index 9ec455d03b..3079afb7ce 100644
--- a/doc/src/compute_saed.rst
+++ b/doc/src/compute_saed.rst
@@ -68,7 +68,7 @@ reciprocal lattice nodes. The mesh spacing is defined either (a)  by
 the entire simulation domain or (b) manually using selected values as
 shown in the 2D diagram below.
 
-.. image:: img/saed_mesh.jpg
+.. image:: img/saed_mesh.png
    :scale: 75%
    :align: center
 
diff --git a/doc/src/img/saed_mesh.jpg b/doc/src/img/saed_mesh.jpg
deleted file mode 100644
index 7b0bf4117f..0000000000
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diff --git a/doc/src/img/saed_mesh.png b/doc/src/img/saed_mesh.png
new file mode 100644
index 0000000000..bd558ce072
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