Index: kernel/arch/ppc32/src/interrupt.c
===================================================================
--- kernel/arch/ppc32/src/interrupt.c	(revision bab75df6bdac0b39185034277416374a06d4b37f)
+++ kernel/arch/ppc32/src/interrupt.c	(revision 159776f796896afa6b2824920bfa93d489d87e6a)
@@ -141,4 +141,6 @@
 			    " (inum=%" PRIu8 ")", CPU->id, inum);
 #endif
+			pic_ack_interrupt(NULL, inum);
+			break;
 		}
 	}