diff --git a/rewrite-yaml/src/main/java/org/openrewrite/yaml/YamlParser.java b/rewrite-yaml/src/main/java/org/openrewrite/yaml/YamlParser.java
index 516095664..576b33bf9 100644
--- a/rewrite-yaml/src/main/java/org/openrewrite/yaml/YamlParser.java
+++ b/rewrite-yaml/src/main/java/org/openrewrite/yaml/YamlParser.java
@@ -41,10 +41,13 @@
 
 import java.io.IOException;
 import java.io.UncheckedIOException;
+import java.nio.file.FileSystems;
 import java.nio.file.Path;
+import java.nio.file.PathMatcher;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import static java.util.Collections.emptyList;
@@ -53,6 +56,19 @@
 
 public class YamlParser implements org.openrewrite.Parser {
     private static final Pattern VARIABLE_PATTERN = Pattern.compile(":\\s*(@[^\n\r@]+@)");
+    private static final String additionalPatterns = System.getProperty("rewrite.yaml.additionalPatterns", "");
+    private List<PathMatcher> additionalMatchers;
+
+    public YamlParser() {
+        if (!additionalPatterns.isEmpty()) {
+            additionalMatchers = Arrays.stream(additionalPatterns.split(","))
+                    .filter(Objects::nonNull)
+                    .map(pattern -> FileSystems.getDefault().getPathMatcher("glob:" + pattern))
+                    .collect(Collectors.toList());
+        } else {
+            additionalMatchers = new ArrayList<>();
+        }
+    }
 
     @Override
     public Stream<SourceFile> parse(@Language("yml") String... sources) {
@@ -422,7 +438,15 @@ private static int commentAwareIndexOf(char target, String s) {
     @Override
     public boolean accept(Path path) {
         String fileName = path.toString();
-        return fileName.endsWith(".yml") || fileName.endsWith(".yaml");
+        if (fileName.endsWith(".yml") || fileName.endsWith(".yaml")) {
+            return true;
+        }
+
+        if (!additionalMatchers.isEmpty()) {
+            return additionalMatchers.stream().anyMatch(p->p.matches(path));
+        }
+
+        return false;
     }
 
     @Override