diff --git a/solaris/Platform.c b/solaris/Platform.c
index e54d732b..ac4e4af4 100644
--- a/solaris/Platform.c
+++ b/solaris/Platform.c
@@ -35,6 +35,7 @@ in the source distribution for its full text.
 #include "Action.h"
 #include "BatteryMeter.h"
 #include "SignalsPanel.h"
+#include "SolarisProcess.h"
 #include <signal.h>
 #include <sys/mkdev.h>
 #include <sys/proc.h>