diff --git a/src/main/java/net/fabricmc/mappingio/format/StandardProperties.java b/src/main/java/net/fabricmc/mappingio/format/StandardProperties.java
index 8f89c6e8..1280a65e 100644
--- a/src/main/java/net/fabricmc/mappingio/format/StandardProperties.java
+++ b/src/main/java/net/fabricmc/mappingio/format/StandardProperties.java
@@ -56,6 +56,7 @@ public static StandardProperty getById(String id) {
 	public static final StandardProperty IS_STATIC;
 	public static final StandardProperty START_LINE_NUMBER;
 	public static final StandardProperty END_LINE_NUMBER;
+	public static final StandardProperty PARAM_DEST_POS;
 	private static final Set<StandardProperty> values = new HashSet<>();
 	private static final Map<String, StandardProperty> valuesByName = new HashMap<>();
 	private static final Map<String, StandardProperty> valuesById = new HashMap<>();
@@ -132,6 +133,12 @@ public static StandardProperty getById(String id) {
 					put(new SimpleEntry<>(MappingFormat.PROGUARD_FILE, MappedElementKind.FIELD), null);
 					put(new SimpleEntry<>(MappingFormat.PROGUARD_FILE, MappedElementKind.FIELD), null);
 				}});
+		PARAM_DEST_POS = register(
+			"parameter-destination-position",
+			Collections.emptyMap(),
+			new HashMap<Entry<MappingFormat, MappedElementKind>, String>() {{
+					put(new SimpleEntry<>(MappingFormat.MATCH_FILE, MappedElementKind.METHOD_ARG), null);
+				}});
 	}
 
 	private static StandardProperty register(String id, Map<MappingFormat, String> filePropNameByFormat,
diff --git a/src/main/java/net/fabricmc/mappingio/format/match/MatchFileReader.java b/src/main/java/net/fabricmc/mappingio/format/match/MatchFileReader.java
index 76251fa8..726e134d 100644
--- a/src/main/java/net/fabricmc/mappingio/format/match/MatchFileReader.java
+++ b/src/main/java/net/fabricmc/mappingio/format/match/MatchFileReader.java
@@ -24,6 +24,7 @@
 import net.fabricmc.mappingio.MappingFlag;
 import net.fabricmc.mappingio.MappingVisitor;
 import net.fabricmc.mappingio.format.ColumnFileReader;
+import net.fabricmc.mappingio.format.StandardProperties;
 
 public class MatchFileReader {
 	public static void read(Reader reader, MappingVisitor visitor) throws IOException {
@@ -131,7 +132,7 @@ private static void readMethodContent(ColumnFileReader reader, boolean escapeNam
 				if (srcArgPos < 0 || dstArgPos < 0) throw new IOException("missing/invalid method arg position in line "+reader.getLineNumber());
 
 				if (visitor.visitMethodArg(srcArgPos, -1, null)) {
-					// TODO: Implement once per-element metadata is supported
+					visitor.visitElementMetadata(MappedElementKind.METHOD_ARG, StandardProperties.PARAM_DEST_POS.getId(), 0, String.valueOf(dstArgPos));
 				}
 			} else if (reader.nextCol("c")) { // comment: c <comment>
 				readComment(reader, MappedElementKind.METHOD, visitor);