diff --git a/src/Main/sentryIntegration.cxx b/src/Main/sentryIntegration.cxx
index 8060a771c..a0aa096e1 100644
--- a/src/Main/sentryIntegration.cxx
+++ b/src/Main/sentryIntegration.cxx
@@ -20,6 +20,8 @@
 
 #include "sentryIntegration.hxx"
 
+#include <cstring> // for strcmp
+
 #include <simgear/debug/LogCallback.hxx>
 #include <simgear/debug/logstream.hxx>
 #include <simgear/misc/sg_path.hxx>