diff --git a/lib/layouts/ijmpc.layout b/lib/layouts/ijmpc.layout
index c7f006a1ec..4c42e6d78e 100644
--- a/lib/layouts/ijmpc.layout
+++ b/lib/layouts/ijmpc.layout
@@ -23,9 +23,6 @@ Sides                   1
 Columns                 1
 SecNumDepth             3
 TocDepth                3
-ProvidesAmsmath         0
-ProvidesNatbib          0
-ProvidesUrl             0
 DefaultStyle            Standard
 
 ClassOptions
diff --git a/lib/layouts/ijmpd.layout b/lib/layouts/ijmpd.layout
index ed5c902af8..fc6eacb6f0 100644
--- a/lib/layouts/ijmpd.layout
+++ b/lib/layouts/ijmpd.layout
@@ -26,9 +26,6 @@ Sides                   1
 Columns                 1
 SecNumDepth             3
 TocDepth                3
-ProvidesAmsmath         0
-ProvidesNatbib          0
-ProvidesUrl             0
 DefaultStyle            Standard
 
 ClassOptions