diff --git a/src/main/java/org/topbraid/shacl/validation/ValidationEngine.java b/src/main/java/org/topbraid/shacl/validation/ValidationEngine.java
index d5c4b992..b57cc31c 100644
--- a/src/main/java/org/topbraid/shacl/validation/ValidationEngine.java
+++ b/src/main/java/org/topbraid/shacl/validation/ValidationEngine.java
@@ -612,7 +612,7 @@ protected void validateNodesAgainstConstraint(Collection<RDFNode> focusNodes, Co
 		}
 		catch(Exception ex) {
 			Resource result = createResult(DASH.FailureResult, constraint, constraint.getShapeResource());
-			result.addProperty(SH.resultMessage, "Failed to create validator: " + ExceptionUtil.getStackTrace(ex));
+			result.addProperty(SH.resultMessage, "Failed to create validator: " + ExceptionUtil.getDeepMessage(ex));
 			return;
 		}
 		if(executor != null) {
@@ -622,7 +622,7 @@ protected void validateNodesAgainstConstraint(Collection<RDFNode> focusNodes, Co
 				}
 				catch(Exception ex) {
 					Resource result = createResult(DASH.FailureResult, constraint, constraint.getShapeResource());
-					result.addProperty(SH.resultMessage, "Exception during validation: " + ExceptionUtil.getStackTrace(ex));
+					result.addProperty(SH.resultMessage, "Exception during validation: " + ExceptionUtil.getDeepMessage(ex));
 				}
 			}
 			else {