diff --git a/modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/ConvertProcessor.java b/modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/ConvertProcessor.java
index 264df6f4c5f24..599fd28e6a658 100644
--- a/modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/ConvertProcessor.java
+++ b/modules/ingest-common/src/main/java/org/elasticsearch/ingest/common/ConvertProcessor.java
@@ -42,7 +42,11 @@ enum Type {
             @Override
             public Object convert(Object value) {
                 try {
-                    return Integer.parseInt(value.toString());
+                    String str = value.toString();
+                    if (str.startsWith("0x")) {
+                        return Integer.decode(str);
+                    }
+                    return Integer.parseInt(str);
                 } catch(NumberFormatException e) {
                     throw new IllegalArgumentException("unable to convert [" + value + "] to integer", e);
                 }
@@ -52,7 +56,11 @@ public Object convert(Object value) {
             @Override
             public Object convert(Object value) {
                 try {
-                    return Long.parseLong(value.toString());
+                    String str = value.toString();
+                    if (str.startsWith("0x")) {
+                        return Long.decode(str);
+                    }
+                    return Long.parseLong(str);
                 } catch(NumberFormatException e) {
                     throw new IllegalArgumentException("unable to convert [" + value + "] to long", e);
                 }
diff --git a/modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/ConvertProcessorTests.java b/modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/ConvertProcessorTests.java
index 292a03d7d9033..982e8714cf632 100644
--- a/modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/ConvertProcessorTests.java
+++ b/modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/ConvertProcessorTests.java
@@ -49,6 +49,15 @@ public void testConvertInt() throws Exception {
         assertThat(ingestDocument.getFieldValue(fieldName, Integer.class), equalTo(randomInt));
     }
 
+    public void testConvertIntHex() throws Exception {
+        IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random());
+        int randomInt = randomInt();
+        String fieldName = RandomDocumentPicks.addRandomField(random(), ingestDocument, "0x" + Integer.toHexString(randomInt));
+        Processor processor = new ConvertProcessor(randomAlphaOfLength(10), fieldName, fieldName, Type.INTEGER, false);
+        processor.execute(ingestDocument);
+        assertThat(ingestDocument.getFieldValue(fieldName, Integer.class), equalTo(randomInt));
+    }
+
     public void testConvertIntList() throws Exception {
         IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random());
         int numItems = randomIntBetween(1, 10);
@@ -92,6 +101,15 @@ public void testConvertLong() throws Exception {
         assertThat(ingestDocument.getFieldValue(fieldName, Long.class), equalTo(randomLong));
     }
 
+    public void testConvertLongHex() throws Exception {
+        IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random());
+        long randomLong = randomLong();
+        String fieldName = RandomDocumentPicks.addRandomField(random(), ingestDocument, "0x" + Long.toHexString(randomLong));
+        Processor processor = new ConvertProcessor(randomAlphaOfLength(10), fieldName, fieldName, Type.LONG, false);
+        processor.execute(ingestDocument);
+        assertThat(ingestDocument.getFieldValue(fieldName, Long.class), equalTo(randomLong));
+    }
+
     public void testConvertLongList() throws Exception {
         IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random());
         int numItems = randomIntBetween(1, 10);