diff --git a/previews.h b/previews.h
index 79d3cb9..2925f85 100644
--- a/previews.h
+++ b/previews.h
@@ -29,6 +29,11 @@ Preview b_previews[] = {
     PR("doc",     NULL,             NULL,             libreoffice,             PREV_ATTR_NONE),
     PR("docx",    NULL,             NULL,             libreoffice,             PREV_ATTR_NONE),
 
+    PR("odp",     NULL,             NULL,             libreoffice,             PREV_ATTR_NONE),
+    PR("fodp",    NULL,             NULL,             libreoffice,             PREV_ATTR_NONE),
+    PR("ppt",     NULL,             NULL,             libreoffice,             PREV_ATTR_NONE),
+    PR("pptx",    NULL,             NULL,             libreoffice,             PREV_ATTR_NONE),
+
     PR(NULL,      "text",           NULL,             bat,                     PREV_ATTR_NONE),
     PR(NULL,      "text",           NULL,             highlight,               PREV_ATTR_NONE),
     PR(NULL,      "text",           NULL,             source_highlight,        PREV_ATTR_NONE),