diff --git a/dmd/arrayop.c b/dmd/arrayop.c
index 5e2e5780..b2433d4b 100644
--- a/dmd/arrayop.c
+++ b/dmd/arrayop.c
@@ -55,8 +55,18 @@ bool isArrayOpValid(Expression *e)
             case TOKxor:
             case TOKand:
             case TOKor:
+            case TOKassign:
+            case TOKaddass:
+            case TOKminass:
+            case TOKmulass:
+            case TOKdivass:
+            case TOKmodass:
+            case TOKxorass:
+            case TOKandass:
+            case TOKorass:
 #if DMDV2
             case TOKpow:
+            case TOKpowass:
 #endif
                  return isArrayOpValid(((BinExp *)e)->e1) && isArrayOpValid(((BinExp *)e)->e2);
 
@@ -604,6 +614,19 @@ int Expression::isArrayOperand()
             case TOKxor:
             case TOKand:
             case TOKor:
+            case TOKassign:
+            case TOKaddass:
+            case TOKminass:
+            case TOKmulass:
+            case TOKdivass:
+            case TOKmodass:
+            case TOKxorass:
+            case TOKandass:
+            case TOKorass:
+#if DMDV2
+            case TOKpow:
+            case TOKpowass:
+#endif
             case TOKneg:
             case TOKtilde:
                 return 1;