diff --git a/target/nios2/helper.c b/target/nios2/helper.c
index c57ffd64e0..25a89724d0 100644
--- a/target/nios2/helper.c
+++ b/target/nios2/helper.c
@@ -99,6 +99,12 @@ void nios2_cpu_do_interrupt(CPUState *cs)
         case EXCP_ILLEGAL:
             name = "ILLEGAL insn";
             break;
+        case EXCP_UNALIGN:
+            name = "Misaligned (data)";
+            break;
+        case EXCP_UNALIGND:
+            name = "Misaligned (destination)";
+            break;
         case EXCP_TRAP:
             name = "TRAP insn";
             break;
@@ -147,6 +153,8 @@ void nios2_cpu_do_interrupt(CPUState *cs)
     case EXCP_SUPERD:
     case EXCP_ILLEGAL:
     case EXCP_TRAP:
+    case EXCP_UNALIGN:
+    case EXCP_UNALIGND:
         do_exception(cpu, cpu->exception_addr, false);
         break;