diff --git a/SourceCode/Code2026/PipelineCmd/EquLibDlg.cpp b/SourceCode/Code2026/PipelineCmd/EquLibDlg.cpp
index 0706226..a4de393 100644
--- a/SourceCode/Code2026/PipelineCmd/EquLibDlg.cpp
+++ b/SourceCode/Code2026/PipelineCmd/EquLibDlg.cpp
@@ -712,15 +712,16 @@ AecDbEwEquipment * CEquLibDlg::selectEqu(LPCTSTR pszSearch
 	, bool &bUseFangle
 	, bool &b2DCheck)
 {
-	if (!pszSearch) return NULL;
-
 	CAcModuleResourceOverride myResources;
 	CEquLibDlg dlg;
 	dlg.m_bValveMode = true;
 	dlg.m_bCheck2DFlag = bUseFangle;
 	dlg.m_bUseFangle = b2DCheck;
 	dlg.m_bSearch = TRUE;
-	dlg.m_sSearch = pszSearch;
+	if (!pszSearch)
+		dlg.m_sSearch = pszSearch;
+	else
+		dlg.m_sSearch = _T("");
 
 	if (dlg.DoModal() != IDOK) return NULL;
 	bUseFangle = dlg.m_bUseFangle == 0 ? false : true;