diff --git a/plat/fvp/fvp_def.h b/plat/fvp/fvp_def.h
index 99c23d8d0..06f2a649a 100644
--- a/plat/fvp/fvp_def.h
+++ b/plat/fvp/fvp_def.h
@@ -209,7 +209,6 @@
 #define IRQ_SEC_SGI_5			13
 #define IRQ_SEC_SGI_6			14
 #define IRQ_SEC_SGI_7			15
-#define IRQ_SEC_SGI_8			16
 
 /*******************************************************************************
  * PL011 related constants
diff --git a/plat/juno/juno_def.h b/plat/juno/juno_def.h
index 88e35b0d0..e205498d5 100644
--- a/plat/juno/juno_def.h
+++ b/plat/juno/juno_def.h
@@ -143,7 +143,6 @@
 #define IRQ_SEC_SGI_5			13
 #define IRQ_SEC_SGI_6			14
 #define IRQ_SEC_SGI_7			15
-#define IRQ_SEC_SGI_8			16
 
 /*******************************************************************************
  * PL011 related constants