diff --git a/Parser/intrcheck.c b/Parser/intrcheck.c
index 32b6555..518cc59 100644
--- a/Parser/intrcheck.c
+++ b/Parser/intrcheck.c
@@ -174,7 +174,7 @@
 #include <string.h>
 #include <signal.h>
 
-int interrupted;
+static int interrupted;
 
 /* ARGSUSED */
 static RETSIGTYPE