diff --git a/src/knownhost.c b/src/knownhost.c
index 985ef34..fb0bff5 100644
--- a/src/knownhost.c
+++ b/src/knownhost.c
@@ -158,7 +158,7 @@ libssh2_knownhost_add(LIBSSH2_KNOWNHOSTS *hosts,
                              "entry");
 
     /* make sure we have a key type set */
-	if(!(typemask & LIBSSH2_KNOWNHOST_KEY_MASK)) {
+    if(!(typemask & LIBSSH2_KNOWNHOST_KEY_MASK)) {
         rc = libssh2_error(hosts->session, LIBSSH2_ERROR_INVAL,
                            "No key type set");
         goto error;