diff --git a/darwin-user/main.c b/darwin-user/main.c
index 45495ed458..d0de491e0b 100644
--- a/darwin-user/main.c
+++ b/darwin-user/main.c
@@ -529,6 +529,9 @@ void cpu_loop(CPUPPCState *env)
             /* Return value */
             env->gpr[3] = ret;
             break;
+        case EXCP_INTERRUPT:
+            /* just indicate that signals should be handled asap */
+            break;
         default:
             cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
             break;
diff --git a/linux-user/main.c b/linux-user/main.c
index 0b6fb977bc..af99d0455a 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -1127,6 +1127,9 @@ void cpu_loop(CPUPPCState *env)
             printf("syscall returned 0x%08x (%d)\n", ret, ret);
 #endif
             break;
+        case EXCP_INTERRUPT:
+            /* just indicate that signals should be handled asap */
+            break;
         default:
             cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
             break;