diff --git a/src/pyj/session.pyj b/src/pyj/session.pyj
index e7f19e4c16..1265e961db 100644
--- a/src/pyj/session.pyj
+++ b/src/pyj/session.pyj
@@ -217,7 +217,7 @@ def deep_eq(a, b):
     if ka.length is not Object.keys(b).length:
         return False
     for key in ka:
-        if not deep_eq(a[ka], b[ka]):
+        if not deep_eq(a[key], b[key]):
             return False
     return True
 
diff --git a/src/pyj/test_utils.pyj b/src/pyj/test_utils.pyj
index da2c6bbe1b..593bd13a8a 100644
--- a/src/pyj/test_utils.pyj
+++ b/src/pyj/test_utils.pyj
@@ -4,6 +4,7 @@ from __python__ import bound_methods, hash_literals
 
 from testing import assert_equal, test
 from utils import fmt_sidx, human_readable, rating_to_stars
+from session import deep_eq
 
 
 @test
@@ -12,3 +13,4 @@ def misc_utils():
     assert_equal(fmt_sidx(10), 'X')
     assert_equal(fmt_sidx(1.2), '1.20')
     assert_equal(list(map(human_readable, [1, 1024.0, 1025, 1024*1024*2.3])), ["1 B", "1 KB", "1 KB", "2.3 MB"])
+    assert_equal(False, deep_eq({"portrait":0, "landscape":0}, {"landscape":3, "portrait":0}))