diff --git a/hping2.h b/hping2.h
index 27cb0ff..60d4370 100644
--- a/hping2.h
+++ b/hping2.h
@@ -357,7 +357,7 @@ struct delaytable_element {
 	int status;
 };
 
-volatile struct delaytable_element delaytable[TABLESIZE];
+extern volatile struct delaytable_element delaytable[TABLESIZE];
 
 /* protos */
 void	nop(void);				/* nop */
diff --git a/main.c b/main.c
index 3aedd86..f7bace6 100644
--- a/main.c
+++ b/main.c
@@ -30,6 +30,8 @@
 
 #include "hping2.h"
 
+volatile struct delaytable_element delaytable[TABLESIZE];
+
 /* globals */
 unsigned int
 	tcp_th_flags = 0,