diff --git a/lib/tfw/components/history_monitor.py b/lib/tfw/components/history_monitor.py
index cd68a09..a4ce76e 100644
--- a/lib/tfw/components/history_monitor.py
+++ b/lib/tfw/components/history_monitor.py
@@ -70,3 +70,9 @@ class BashMonitor(HistoryMonitor):
 
     def sanitize_command(self, command):
         return command.strip()
+
+
+class GDBMonitor(HistoryMonitor):
+    @property
+    def command_pattern(self):
+        return r'(?<=\n)\+(.+)\n'