diff --git a/src/or/directory.c b/src/or/directory.c
index 9ecaa70cf8..7fe78954c6 100644
--- a/src/or/directory.c
+++ b/src/or/directory.c
@@ -332,7 +332,7 @@ connection_dir_download_networkstatus_failed(connection_t *conn)
     directory_get_from_dirserver(conn->purpose, "all.z",
                                  0 /* don't retry_if_no_servers */);
   } else if (!strcmpstart(conn->requested_resource, "fp/")) {
-    /* We were trying to download by fingerprint; mark them all has having
+    /* We were trying to download by fingerprint; mark them all as having
      * failed, and possibly retry them later.*/
     smartlist_t *failed = smartlist_create();
     dir_split_resource_into_fingerprints(conn->requested_resource+3,
@@ -1804,7 +1804,7 @@ connection_dir_finished_connecting(connection_t *conn)
 }
 
 /** Called when one or more networkstatus fetches have failed (with uppercase
- * fingerprints listed in <b>failed</>).  Mark those fingerprints has having
+ * fingerprints listed in <b>failed</>).  Mark those fingerprints as having
  * failed once. */
 static void
 dir_networkstatus_download_failed(smartlist_t *failed)
diff --git a/src/or/or.h b/src/or/or.h
index 7963f7ceee..f48507fc66 100644
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -859,7 +859,7 @@ typedef struct routerstatus_t {
  * about a single router. */
 typedef struct local_routerstatus_t {
   /** What do we believe to be the case about this router?  In this field,
-   * descriptor_digest represnets the descriptor we would most like to use for
+   * descriptor_digest represents the descriptor we would most like to use for
    * this router. */
   routerstatus_t status;
   time_t next_attempt_at; /**< When should we try this descriptor again? */
diff --git a/src/or/routerparse.c b/src/or/routerparse.c
index 00bc8a454a..99fb7defb5 100644
--- a/src/or/routerparse.c
+++ b/src/or/routerparse.c
@@ -1651,7 +1651,7 @@ find_all_exitpolicy(smartlist_t *s)
   return out;
 }
 
-/** Compute the SHA digest of the substring of <b>s</b> taken from the first
+/** Compute the SHA-1 digest of the substring of <b>s</b> taken from the first
  * occurrence of <b>start_str</b> through the first newline after the first
  * subsequent occurrence of <b>end_str</b>; store the 20-byte result in
  * <b>digest</b>; return 0 on success.