diff --git a/src/interest.cpp b/src/interest.cpp
index 80434ab..8959881 100644
--- a/src/interest.cpp
+++ b/src/interest.cpp
@@ -188,7 +188,7 @@
       //     excludes some digests - fullName required
       // But Interests that contain the exact Data Name before digest and also
       // contain Exclude filter is too rare to optimize for, so we request
-      // fullName no mater what's in the Exclude filter.
+      // fullName no matter what's in the Exclude filter.
     }
     else {
       // component to exclude is not the digest