diff --git a/src/request_tab_widget.py b/src/request_tab_widget.py
index dc33794..3d3c16d 100644
--- a/src/request_tab_widget.py
+++ b/src/request_tab_widget.py
@@ -735,7 +735,6 @@ class RequestTabWidget(Gtk.Box):
         """Update visual indicators for undefined variables."""
         # Detect undefined variables
         self.undefined_variables = self._detect_undefined_variables()
-        print(f"Updating indicators, undefined vars: {self.undefined_variables}")
 
         # Update URL entry
         self._update_url_indicator()
@@ -770,9 +769,6 @@ class RequestTabWidget(Gtk.Box):
         # Iterate through all header rows
         child = self.headers_listbox.get_first_child()
         while child:
-            # Debug: print child type
-            print(f"Header child type: {type(child).__name__}")
-
             # HeaderRow might be a child of the ListBox row
             header_row = None
             if isinstance(child, HeaderRow):
diff --git a/src/window.py b/src/window.py
index 61b2c9a..cc4733b 100644
--- a/src/window.py
+++ b/src/window.py
@@ -447,10 +447,10 @@ class RosterWindow(Adw.ApplicationWindow):
                 if tab:
                     tab.response = response
 
-            # Create history entry
+            # Create history entry (save the substituted request with actual values)
             entry = HistoryEntry(
                 timestamp=datetime.now().isoformat(),
-                request=request,
+                request=substituted_request,
                 response=response,
                 error=error
             )