diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 0a3315bb5..1ede48a65 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -431,7 +431,7 @@ void callSuccess(
 }
 
 
-/* A variant of std::istringstream that doesn't its string
+/* A variant of std::istringstream that doesn't copy its string
    argument. This is useful for large strings. The caller must ensure
    that the string object is not destroyed while it's referenced by
    this object. */