Index: kernel/arch/ppc32/src/interrupt.c
===================================================================
--- kernel/arch/ppc32/src/interrupt.c	(revision ebbc03c7d492f70aacac6214c5530a540b37a7a3)
+++ kernel/arch/ppc32/src/interrupt.c	(revision e89dc0bacf99b99de30c88baad43fd0689f116fa)
@@ -141,4 +141,6 @@
 			    " (inum=%" PRIu8 ")", CPU->id, inum);
 #endif
+			pic_ack_interrupt(NULL, inum);
+			break;
 		}
 	}