diff --git a/PyCore/Embed/PyInterpreter.cpp b/PyCore/Embed/PyInterpreter.cpp
index dadb7594ad7f6d0aa440a4392c4c9446ec76168a..47896f5b0fd978812c90c1376ec057382f8da489 100644
--- a/PyCore/Embed/PyInterpreter.cpp
+++ b/PyCore/Embed/PyInterpreter.cpp
@@ -32,6 +32,7 @@ References:
 #include "PyCore/Embed/PyObjectPtr.h"
 #include "PyCore/Embed/WithNumpy.h"
 #include <algorithm> // transform
+#include <csignal>   // SIGINT
 #include <cstddef>   // NULL
 #include <cstring>   // memcpy
 #include <iostream>  // cerr