diff --git a/python/ipnb/src/org/jetbrains/plugins/ipnb/IpnbUtils.java b/python/ipnb/src/org/jetbrains/plugins/ipnb/IpnbUtils.java
index aeea1289ef9d..84369778fb9a 100644
--- a/python/ipnb/src/org/jetbrains/plugins/ipnb/IpnbUtils.java
+++ b/python/ipnb/src/org/jetbrains/plugins/ipnb/IpnbUtils.java
@@ -228,6 +228,7 @@ public class IpnbUtils {
     }
     catch (SAXException e) {
       LOG.error(e);
+      LOG.info("formula text " + formulaText);
     }
     catch (ParserConfigurationException e) {
       LOG.error(e);