diff --git a/dtrt-indent.el b/dtrt-indent.el
index 76ef811..bccfcf3 100644
--- a/dtrt-indent.el
+++ b/dtrt-indent.el
@@ -333,6 +333,7 @@ quote, for example.")
     (java-mode       c/c++/java    c-basic-offset)       ; Java
     (jde-mode        c/c++/java    c-basic-offset)       ; Java (JDE)
     (js-mode         javascript    js-indent-level)      ; JavaScript
+    (js-json-mode    javascript    js-indent-level)      ; JSON
     (js2-mode        javascript    js2-basic-offset)     ; JavaScript-IDE
     (js3-mode        javascript    js3-indent-level)     ; JavaScript-IDE
     (json-mode       javascript    js-indent-level)      ; JSON