diff --git a/AMESCoreStudio.WebApi/Controllers/AMES/WipSopController.cs b/AMESCoreStudio.WebApi/Controllers/AMES/WipSopController.cs
index 09287e08..494ad07c 100644
--- a/AMESCoreStudio.WebApi/Controllers/AMES/WipSopController.cs
+++ b/AMESCoreStudio.WebApi/Controllers/AMES/WipSopController.cs
@@ -103,7 +103,7 @@ namespace AMESCoreStudio.WebApi.Controllers.AMES
             IQueryable<WipSop> q = _context.WipSops.Where(w => w.WipNo.Trim().ToUpper() == wipNo.Trim().ToUpper() &&
                                                                w.ItemNo.Trim().ToUpper() == itemNo.Trim().ToUpper() &&
                                                                w.SOPName.Trim().ToUpper() == sopName.Trim().ToUpper() &&
-                                                               w.SOPType == "A" && string.IsNullOrWhiteSpace(w.SOPVer));
+                                                               w.SOPType == "A" && !string.IsNullOrWhiteSpace(w.SOPVer));
             var query = await q.ToListAsync();
             try
             {