diff --git a/src/signals.h b/src/signals.h
index 526285df68bebe6725364d3b0bf8d43061a54376..090ab0be7301696fd63cc820afefd024dff33902 100644
--- a/src/signals.h
+++ b/src/signals.h
@@ -27,5 +27,5 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SIGNALS_H
 
 void setup_signal_handlers();
-
+extern int sig_exit;
 #endif