diff --git a/src/include/microhttpd.h b/src/include/microhttpd.h
index 39d5013f..df223a6a 100644
--- a/src/include/microhttpd.h
+++ b/src/include/microhttpd.h
@@ -2719,7 +2719,7 @@ MHD_add_connection (struct MHD_Daemon *daemon,
  * before calling this function. FD_SETSIZE is assumed
  * to be platform's default.
  *
- * This function should only be called in when MHD is configured to
+ * This function should only be called only when MHD is configured to
  * use "external" sockets polling with 'select()' or with 'epoll'.
  * In the latter case, it will only add the single 'epoll' file
  * descriptor used by MHD to the sets.
@@ -2760,7 +2760,7 @@ MHD_get_fdset (struct MHD_Daemon *daemon,
  * Passing custom FD_SETSIZE as @a fd_setsize allow usage of
  * larger/smaller than platform's default fd_sets.
  *
- * This function should only be called in when MHD is configured to
+ * This function should only be called only when MHD is configured to
  * use "external" sockets polling with 'select()' or with 'epoll'.
  * In the latter case, it will only add the single 'epoll' file
  * descriptor used by MHD to the sets.
@@ -2801,7 +2801,7 @@ MHD_get_fdset2 (struct MHD_Daemon *daemon,
  * before calling this function. Size of fd_set is
  * determined by current value of FD_SETSIZE.
  *
- * This function should only be called in when MHD is configured to
+ * This function should only be called only when MHD is configured to
  * use "external" sockets polling with 'select()' or with 'epoll'.
  * In the latter case, it will only add the single 'epoll' file
  * descriptor used by MHD to the sets.
diff --git a/src/microhttpd/daemon.c b/src/microhttpd/daemon.c
index d022247d..1c115657 100644
--- a/src/microhttpd/daemon.c
+++ b/src/microhttpd/daemon.c
@@ -700,8 +700,8 @@ MHD_TLS_init (struct MHD_Daemon *daemon)
  * before calling this function. FD_SETSIZE is assumed
  * to be platform's default.
  *
- * This function should only be called in when MHD is configured to
- * use external select with 'select()' or with 'epoll'.
+ * This function should only be called only when MHD is configured to
+ * use "external" sockets polling with 'select()' or with 'epoll'.
  * In the latter case, it will only add the single 'epoll' file
  * descriptor used by MHD to the sets.
  * It's necessary to use #MHD_get_timeout() to get maximum timeout
@@ -1107,8 +1107,8 @@ internal_get_fdset2 (struct MHD_Daemon *daemon,
  * Passing custom FD_SETSIZE as @a fd_setsize allow usage of
  * larger/smaller than platform's default fd_sets.
  *
- * This function should only be called in when MHD is configured to
- * use external select with 'select()' or with 'epoll'.
+ * This function should only be called only when MHD is configured to
+ * use "external" sockets polling with 'select()' or with 'epoll'.
  * In the latter case, it will only add the single 'epoll' file
  * descriptor used by MHD to the sets.
  * It's necessary to use #MHD_get_timeout() to get maximum timeout