diff --git a/src/cryptsetup.h b/src/cryptsetup.h
index aa908e7f..ebba6b3b 100644
--- a/src/cryptsetup.h
+++ b/src/cryptsetup.h
@@ -70,6 +70,7 @@ void tool_log(int level, const char *msg, void *usrptr __attribute__((unused)));
 void quiet_log(int level, const char *msg, void *usrptr);
 
 int yesDialog(const char *msg, void *usrptr);
+int noDialog(const char *msg, void *usrptr);
 void show_status(int errcode);
 const char *uuid_or_device(const char *spec);
 __attribute__ ((noreturn)) \
diff --git a/src/utils_tools.c b/src/utils_tools.c
index 3c35e6ce..cf0728c0 100644
--- a/src/utils_tools.c
+++ b/src/utils_tools.c
@@ -169,6 +169,11 @@ int yesDialog(const char *msg, void *usrptr)
 	return _dialog(msg, usrptr, 1);
 }
 
+int noDialog(const char *msg, void *usrptr)
+{
+	return _dialog(msg, usrptr, 0);
+}
+
 void show_status(int errcode)
 {
 	char *crypt_error;