diff --git a/Tools/gdb/libpython.py b/Tools/gdb/libpython.py

index 9def56e..d98cb2d 100755

--- a/Tools/gdb/libpython.py

+++ b/Tools/gdb/libpython.py

@@ -938,6 +938,8 @@ class PyFrameObjectPtr(PyObjectPtr):

         newline character'''

         if self.is_optimized_out():

             return '(frame information optimized out)'

+        if self.filename() == '<string>':

+            return '(in an eval block)'

         lineno = self.current_line_num()

         if lineno is None: