--- a/gui/oprof_start_config.cpp
+++ b/gui/oprof_start_config.cpp
@@ -35,6 +35,7 @@
 config_setting::config_setting()
 	:
 	buffer_size(OP_DEFAULT_BUF_SIZE),
+	note_table_size(0),
 	no_kernel(false),
 	verbose(false),
 	separate_lib(false),