diff --git a/src/main/java/com/github/os72/protocjar/PlatformDetector.java b/src/main/java/com/github/os72/protocjar/PlatformDetector.java
index 7a99348..94986b9 100644
--- a/src/main/java/com/github/os72/protocjar/PlatformDetector.java
+++ b/src/main/java/com/github/os72/protocjar/PlatformDetector.java
@@ -217,6 +217,9 @@ private static String normalizeArch(String value) {
         if ("s390x".equals(value)) {
             return "s390_64";
         }
+        if ("riscv64".equals(value)) {
+            return "riscv64";
+        }
 
         return UNKNOWN;
     }