diff --git a/gsrs-module-substance-example/src/test/java/example/substance/validation/SaltValidatorTest.java b/gsrs-module-substance-example/src/test/java/example/substance/validation/SaltValidatorTest.java
index 43d56164b..3f17e4cde 100644
--- a/gsrs-module-substance-example/src/test/java/example/substance/validation/SaltValidatorTest.java
+++ b/gsrs-module-substance-example/src/test/java/example/substance/validation/SaltValidatorTest.java
@@ -25,6 +25,8 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.List;
+import java.util.UUID;
+
 import lombok.extern.slf4j.Slf4j;
 import org.junit.After;
 import org.junit.AfterClass;
@@ -114,6 +116,8 @@ public void testFindLayer1DefHashDuplicates() {
         log.trace("testFindLayer1DefHashDuplicates");
         String approvalID = "660YQ98I10";
         ChemicalSubstance chemical = getChemicalFromFile(approvalID);
+        chemical.uuid=UUID.randomUUID();
+        
         List<Substance> duplicates = ValidationUtils.findDefinitionaLayer1lDuplicateCandidates(chemical, 
                new DefHashCalcRequirements(definitionalElementFactory, searchService, transactionManager) );
         log.trace("duplicate list size: " + duplicates.size() + "; items: ");
@@ -133,6 +137,8 @@ public void testFindFullDefHashDuplicates() {
         log.trace("TestFindFullDefHashDuplicates");
         String approvalID = "660YQ98I10";
         ChemicalSubstance chemical = getChemicalFromFile(approvalID);
+        chemical.uuid=UUID.randomUUID();
+        
         List<Substance> duplicates = ValidationUtils.findFullDefinitionalDuplicateCandidates(chemical,
                new DefHashCalcRequirements( definitionalElementFactory, searchService, transactionManager));
         assertEquals(1, duplicates.size());
diff --git a/gsrs-module-substance-example/src/test/java/example/substance/validation/SubstanceUniquenessValidatorTest.java b/gsrs-module-substance-example/src/test/java/example/substance/validation/SubstanceUniquenessValidatorTest.java
index 26c5dca77..e905a04cd 100644
--- a/gsrs-module-substance-example/src/test/java/example/substance/validation/SubstanceUniquenessValidatorTest.java
+++ b/gsrs-module-substance-example/src/test/java/example/substance/validation/SubstanceUniquenessValidatorTest.java
@@ -19,6 +19,8 @@
 import ix.ginas.utils.validation.validators.SubstanceUniquenessValidator;
 import java.io.File;
 import java.io.IOException;
+import java.util.UUID;
+
 import lombok.extern.slf4j.Slf4j;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
@@ -75,6 +77,7 @@ public void testValidation() {
         String name ="G6867RWN6N";
         String completeDuplicateMessage= "appears to be a full duplicate";
         ChemicalSubstance protein = getChemicalSubstanceFromFile(name);
+        protein.uuid= UUID.randomUUID();
         SubstanceUniquenessValidator validator = new SubstanceUniquenessValidator();
         AutowireHelper.getInstance().autowire(validator);
         ValidationResponse response = validator.validate(protein, null);
@@ -87,6 +90,8 @@ public void testExactDuplicateStrDiv() {
         String name ="N5WWR36MDJ";
         String completeDuplicateMessage= "appears to be a full duplicate";
         Substance substance = getSubstanceFromFile(name);
+        substance.uuid= UUID.randomUUID();
+        
         SubstanceUniquenessValidator validator = new SubstanceUniquenessValidator();
         AutowireHelper.getInstance().autowire(validator);
         ValidationResponse response = validator.validate(substance, null);
@@ -97,12 +102,27 @@ public void testValidationDiastereomer() {
         log.trace("Starting in testValidation");
         String name ="G6867RWN6N-diast";
         String possibleDuplicateMessage= "is a possible duplicate";
-        ChemicalSubstance protein = getChemicalSubstanceFromFile(name);
+        ChemicalSubstance chem = getChemicalSubstanceFromFile(name);
+        chem.uuid=UUID.randomUUID();
+        
         SubstanceUniquenessValidator validator = new SubstanceUniquenessValidator();
         AutowireHelper.getInstance().autowire(validator);
-        ValidationResponse response = validator.validate(protein, null);
+        ValidationResponse response = validator.validate(chem, null);
         Assertions.assertTrue(response.getValidationMessages().stream().anyMatch(m-> ((GinasProcessingMessage) m).message.contains(possibleDuplicateMessage)));
     }
+    
+    @Test
+    public void testDuplicateDoesNotFindItself() {
+        log.trace("Starting in testValidation");
+        String name ="G6867RWN6N-diast";
+        String possibleDuplicateMessage= "is a possible duplicate";
+        ChemicalSubstance chem = getChemicalSubstanceFromFile(name);
+        SubstanceUniquenessValidator validator = new SubstanceUniquenessValidator();
+        AutowireHelper.getInstance().autowire(validator);
+        ValidationResponse response = validator.validate(chem, null);
+        //should not contain a duplicate message
+        Assertions.assertFalse(response.getValidationMessages().stream().anyMatch(m-> ((GinasProcessingMessage) m).message.contains(possibleDuplicateMessage)));
+    }
 
     @Test
     public void testValidationNoDuplicates() {