diff --git a/lib/layouts/siamltex.layout b/lib/layouts/siamltex.layout
index 233416833b..0ef298d201 100644
--- a/lib/layouts/siamltex.layout
+++ b/lib/layouts/siamltex.layout
@@ -15,6 +15,7 @@ Columns                 1
 Sides                   2
 PageStyle               Headers
 Provides makeidx        1
+Provides amsthm         1
 
 
 ClassOptions
diff --git a/status.16x b/status.16x
index 56f6d83b32..c15a06faa8 100644
--- a/status.16x
+++ b/status.16x
@@ -61,6 +61,9 @@ What's new
 
 - Fix LaTeX error with custom margins and the revtex4 class (bug 3838).
 
+- siamltex class: do not load amsthm package, since the SIAM class 
+  provides its own theorem-like environments.
+
 
 * USER INTERFACE