diff --git a/plugins/builtin/source/content/views/view_pattern_editor.cpp b/plugins/builtin/source/content/views/view_pattern_editor.cpp
index 0c93ced75..e15fa58b2 100644
--- a/plugins/builtin/source/content/views/view_pattern_editor.cpp
+++ b/plugins/builtin/source/content/views/view_pattern_editor.cpp
@@ -801,6 +801,8 @@ namespace hex::plugin::builtin {
                     this->m_textEditor.SetText(wolv::util::trim(this->m_sourceCode.get(newProvider)));
                 else
                     this->m_textEditor.SetText("");
+            } else {
+                this->m_hasUnevaluatedChanges = true;
             }
         });
     }