diff --git a/dist/libsignal-protocol.js b/dist/libsignal-protocol.js
index a66b833..2f77791 100644
--- a/dist/libsignal-protocol.js
+++ b/dist/libsignal-protocol.js
@@ -35541,7 +35541,12 @@ Internal.SessionRecord = function() {
         } else if (thing === Object(thing)) {
             var obj = {};
             for (var key in thing) {
-                obj[key] = ensureStringed(thing[key]);
+                try {
+                  obj[key] = ensureStringed(thing[key]);
+                } catch (ex) {
+                  console.log('Error serializing key', key);
+                  throw ex;
+                }
             }
             return obj;
         } else if (thing === null) {
diff --git a/src/SessionRecord.js b/src/SessionRecord.js
index e0bbea6..2d56661 100644
--- a/src/SessionRecord.js
+++ b/src/SessionRecord.js
@@ -42,7 +42,12 @@ Internal.SessionRecord = function() {
         } else if (thing === Object(thing)) {
             var obj = {};
             for (var key in thing) {
-                obj[key] = ensureStringed(thing[key]);
+                try {
+                  obj[key] = ensureStringed(thing[key]);
+                } catch (ex) {
+                  console.log('Error serializing key', key);
+                  throw ex;
+                }
             }
             return obj;
         } else if (thing === null) {