diff --git a/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ConvertJSONToSQL.java b/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ConvertJSONToSQL.java
index 902af5123c..4125eeb067 100644
--- a/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ConvertJSONToSQL.java
+++ b/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/ConvertJSONToSQL.java
@@ -471,7 +471,7 @@ public class ConvertJSONToSQL extends AbstractProcessor {
             final ColumnDescription desc = schema.getColumns().get(normalizedColName);
 
             if (desc == null) {
-                if (ignoreUnmappedFields) {
+                if (!ignoreUnmappedFields) {
                     throw new ProcessException("Cannot map JSON field '" + fieldName + "' to any column in the database");
                 } else {
                     continue;