diff --git a/README b/README
index b7506e4..e50714e 100644
--- a/README
+++ b/README
@@ -17,7 +17,7 @@ Otherwise, you need JACK with MIDI support, gtk+ 2.6 or higher,
 make(1), gcc and all the standard headers.  Untar the file, type
 'make install' and that's it.
 If Makefile is not present, you can generate it with:
-aclocal && autoheader && automake --add-missing && autoconf
+aclocal && autoheader && automake --add-missing && autoconf && ./configure
 
 How to use it?
 --------------
diff --git a/README.md b/README.md
index 3b8675c..baf8b19 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Otherwise, you need JACK with MIDI support, gtk+ 2.6 or higher,
 make(1), gcc and all the standard headers.  Untar the file, type
 'make install' and that's it.
 If Makefile is not present, you can generate it with:
-aclocal && autoheader && automake --add-missing && autoconf
+aclocal && autoheader && automake --add-missing && autoconf && ./configure
 
 ## How to use it?
 
diff --git a/src/jack-keyboard.c b/src/jack-keyboard.c
index 8743cc1..f973222 100644
--- a/src/jack-keyboard.c
+++ b/src/jack-keyboard.c
@@ -317,7 +317,7 @@ warning_async(gpointer s)
 {
 	const char *str = (const char *)s;
 
-	g_warning(str);
+	g_warning("%s",str);
 
 	return (FALSE);
 }
@@ -1810,8 +1810,8 @@ log_handler(const gchar *log_domain, GLogLevelFlags log_level, const gchar *mess
 	fprintf(stderr, "%s: %s\n", log_domain, message);
 
 	if ((log_level | G_LOG_LEVEL_CRITICAL) == G_LOG_LEVEL_CRITICAL) {
-		dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,
-			GTK_BUTTONS_CLOSE, message);
+	    dialog = gtk_message_dialog_new(GTK_WINDOW(window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR,
+					    GTK_BUTTONS_CLOSE, "%s", message);
 
 		gtk_dialog_run(GTK_DIALOG(dialog));