diff --git a/lib/Support/Signals.cpp b/lib/Support/Signals.cpp
index b3ad9c42de2..effc0599e46 100644
--- a/lib/Support/Signals.cpp
+++ b/lib/Support/Signals.cpp
@@ -11,6 +11,7 @@
 #include <cstdlib>
 #include <cstdio>
 #include <signal.h>
+#include "Config/config.h"     // Get the signal handler return type
 
 static std::vector<std::string> FilesToRemove;
 
diff --git a/support/lib/Support/Signals.cpp b/support/lib/Support/Signals.cpp
index b3ad9c42de2..effc0599e46 100644
--- a/support/lib/Support/Signals.cpp
+++ b/support/lib/Support/Signals.cpp
@@ -11,6 +11,7 @@
 #include <cstdlib>
 #include <cstdio>
 #include <signal.h>
+#include "Config/config.h"     // Get the signal handler return type
 
 static std::vector<std::string> FilesToRemove;