diff --git a/ASTree.cpp b/ASTree.cpp
index 7f36b3d..d66859b 100644
--- a/ASTree.cpp
+++ b/ASTree.cpp
@@ -431,8 +431,8 @@ PycRef<ASTNode> BuildFromCode(PycRef<PycCode> code, PycModule* mod)
                 bases.resize(basecnt);
                 PycRef<ASTNode> TOS = stack.top();
                 int TOS_type = TOS.type();
-                // bases are NODE_NAME at TOS
-                while (TOS_type == ASTNode::NODE_NAME) {
+                // bases are NODE_NAME and NODE_BINARY at TOS
+                while (TOS_type == ASTNode::NODE_NAME || TOS_type == ASTNode::NODE_BINARY) {
                     bases.resize(basecnt + 1);
                     bases[basecnt] = TOS;
                     basecnt++;
diff --git a/tests/compiled/class_NODE_BINARY.3.9.pyc b/tests/compiled/class_NODE_BINARY.3.9.pyc
new file mode 100644
index 0000000..1f2ccc1
Binary files /dev/null and b/tests/compiled/class_NODE_BINARY.3.9.pyc differ
diff --git a/tests/input/class_NODE_BINARY.py b/tests/input/class_NODE_BINARY.py
new file mode 100644
index 0000000..9d5c613
--- /dev/null
+++ b/tests/input/class_NODE_BINARY.py
@@ -0,0 +1,3 @@
+import Test
+class MyNet(Test.t):
+        pass
diff --git a/tests/tokenized/class_NODE_BINARY.txt b/tests/tokenized/class_NODE_BINARY.txt
new file mode 100644
index 0000000..71b3977
--- /dev/null
+++ b/tests/tokenized/class_NODE_BINARY.txt
@@ -0,0 +1,4 @@
+import Test <EOL>
+class MyNet ( Test . t ) : <EOL>
+<INDENT>
+pass <EOL>