diff --git a/sched/Kconfig b/sched/Kconfig
index 2a41d1cb198..a11233056c6 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -1309,6 +1309,12 @@ endmenu # RTOS hooks
 
 menu "Signal Configuration"
 
+config SIG_PREALLOC_IRQ_ACTIONS
+	int "Number of pre-allocated irq actions"
+	default 8
+	---help---
+		The number of pre-allocated irq action structures.
+
 config SIG_EVTHREAD
 	bool "Support SIGEV_THHREAD"
 	default n
diff --git a/sched/signal/sig_initialize.c b/sched/signal/sig_initialize.c
index 0a03ff2c94f..39f4ca18cb4 100644
--- a/sched/signal/sig_initialize.c
+++ b/sched/signal/sig_initialize.c
@@ -230,7 +230,7 @@ void nxsig_initialize(void)
 
   g_sigpendingirqactionalloc =
     nxsig_alloc_block(&g_sigpendingirqaction,
-                      NUM_PENDING_INT_ACTIONS,
+                      CONFIG_SIG_PREALLOC_IRQ_ACTIONS,
                       SIG_ALLOC_IRQ);
   DEBUGASSERT(g_sigpendingirqactionalloc != NULL);
 
@@ -242,7 +242,7 @@ void nxsig_initialize(void)
 
   g_sigpendingirqsignalalloc =
     nxsig_alloc_pendingsignalblock(&g_sigpendingirqsignal,
-                                   NUM_INT_SIGNALS_PENDING,
+                                   CONFIG_SIG_PREALLOC_IRQ_ACTIONS,
                                    SIG_ALLOC_IRQ);
   DEBUGASSERT(g_sigpendingirqsignalalloc != NULL);
 }
diff --git a/sched/signal/signal.h b/sched/signal/signal.h
index e8d36d02b52..5689fe2034a 100644
--- a/sched/signal/signal.h
+++ b/sched/signal/signal.h
@@ -60,9 +60,7 @@
 
 #define NUM_SIGNAL_ACTIONS       4
 #define NUM_PENDING_ACTIONS      4
-#define NUM_PENDING_INT_ACTIONS  8
 #define NUM_SIGNALS_PENDING      4
-#define NUM_INT_SIGNALS_PENDING  8
 
 /****************************************************************************
  * Public Type Definitions