diff --git a/study/resources/schemas/dbscripts/postgresql/study-26.000-26.001.sql b/study/resources/schemas/dbscripts/postgresql/study-26.000-26.001.sql
new file mode 100644
index 00000000000..6da63badc7e
--- /dev/null
+++ b/study/resources/schemas/dbscripts/postgresql/study-26.000-26.001.sql
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2026 LabKey Corporation
+ *
+ * Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+-- GitHub Issue 1499: Reset specimen base-column storage names that were uniquified with a numeric suffix but never became a physical column
+UPDATE exp.propertydescriptor
+SET storagecolumnname = exp.propertydescriptor.name
+FROM exp.propertydomain pdm, exp.domaindescriptor dd
+WHERE pdm.propertyid = exp.propertydescriptor.propertyid
+  AND dd.domainid = pdm.domainid
+  AND LOWER(dd.storageschemaname) = 'specimentables'
+  AND LOWER(exp.propertydescriptor.storagecolumnname) = LOWER(exp.propertydescriptor.name) || '1';
diff --git a/study/resources/schemas/dbscripts/sqlserver/study-26.000-26.001.sql b/study/resources/schemas/dbscripts/sqlserver/study-26.000-26.001.sql
new file mode 100644
index 00000000000..80f18c031fa
--- /dev/null
+++ b/study/resources/schemas/dbscripts/sqlserver/study-26.000-26.001.sql
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2026 LabKey Corporation
+ *
+ * Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+-- GitHub Issue 1499: Reset specimen base-column storage names that were uniquified with a numeric suffix but never became a physical column
+UPDATE exp.propertydescriptor
+SET storagecolumnname = exp.propertydescriptor.name
+FROM exp.propertydomain pdm, exp.domaindescriptor dd
+WHERE pdm.propertyid = exp.propertydescriptor.propertyid
+  AND dd.domainid = pdm.domainid
+  AND LOWER(dd.storageschemaname) = 'specimentables'
+  AND LOWER(exp.propertydescriptor.storagecolumnname) = LOWER(exp.propertydescriptor.name) + '1';
diff --git a/study/src/org/labkey/study/StudyModule.java b/study/src/org/labkey/study/StudyModule.java
index 8200f035965..7a9c20748c3 100644
--- a/study/src/org/labkey/study/StudyModule.java
+++ b/study/src/org/labkey/study/StudyModule.java
@@ -229,7 +229,7 @@ public String getName()
     @Override
     public Double getSchemaVersion()
     {
-        return 26.000;
+        return 26.001;
     }
 
     @Override