diff --git a/ChangeLog b/ChangeLog
index ec190bb2e3..a3d3c8dd7c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7251,4 +7251,7 @@
 	* arch/z16/src/z16f_timerisr.c:  Fix calculation of timer
 	  reload and prescaler.  The timer frequency was way too fast
 	  (2014-4-25).
+	* arch/arm/src/stm32/stm32_otgfsdev.c: Sourceforge Ticket #26.
+	  up_prioritize_irq should not be called if CONFIG_ARCH_IRQPRIO
+	  is not defined (2014-4-25).
 
diff --git a/arch/arm/src/stm32/stm32_otgfsdev.c b/arch/arm/src/stm32/stm32_otgfsdev.c
index e9cf95a635..ca6fddbb6d 100644
--- a/arch/arm/src/stm32/stm32_otgfsdev.c
+++ b/arch/arm/src/stm32/stm32_otgfsdev.c
@@ -5459,9 +5459,11 @@ void up_usbinitialize(void)
 
   up_enable_irq(STM32_IRQ_OTGFS);
 
-  /* Set the interrrupt priority */
+#ifdef CONFIG_ARCH_IRQPRIO
+  /* Set the interrupt priority */
 
   up_prioritize_irq(STM32_IRQ_OTGFS, CONFIG_OTGFS_PRI);
+#endif
   return;
 
 errout: