diff --git a/doc/interop-test-descriptions.md b/doc/interop-test-descriptions.md
index 92824df23d6..97d76191a8f 100644
--- a/doc/interop-test-descriptions.md
+++ b/doc/interop-test-descriptions.md
@@ -82,7 +82,7 @@ Procedure:
     request context. Longer term this should be driven by the method option
     specified in the proto file itself.
  2. Client calls CacheableUnaryCall with `SimpleRequest` request again
-    immediately with the same payload as the previous request. Cacheable flat is
+    immediately with the same payload as the previous request. Cacheable flag is
     also set for this request's context.
 
 Client asserts: