diff --git a/src/task-manager-linux.c b/src/task-manager-linux.c
index c7ecb4d..aeef8fc 100644
--- a/src/task-manager-linux.c
+++ b/src/task-manager-linux.c
@@ -346,7 +346,7 @@ pid_is_sleeping (GPid pid)
 	FILE *file;
 	gchar filename[96];
 	gchar buffer[1024];
-	gchar state[2];
+	gchar state[2] = { 0 };
 
 	snprintf (filename, sizeof (filename), "/proc/%i/status", pid);
 	if ((file = fopen (filename, "r")) == NULL)