diff --git a/gen/arrays.cpp b/gen/arrays.cpp
index fdda303b..ba23cdcf 100644
--- a/gen/arrays.cpp
+++ b/gen/arrays.cpp
@@ -492,15 +492,16 @@ DSliceValue* DtoNewMulDimDynArray(Type* arrayType, DValue** dims, size_t ndims,
 
     // build dims
     LLValue* dimsArg = new llvm::AllocaInst(DtoSize_t(), DtoConstUint(ndims), ".newdims", gIR->topallocapoint());
+    LLValue* firstDim = NULL; 
     for (size_t i=0; i<ndims; ++i)
     {
         LLValue* dim = dims[i]->getRVal();
+        if (!firstDim) firstDim = dim;
         DtoStore(dim, DtoGEPi1(dimsArg, i));
     }
 
     // call allocator
-    LLConstant* arrayLen = DtoConstSize_t(ndims);
-    LLValue* newptr = gIR->ir->CreateCall3(fn, arrayTypeInfo, arrayLen, dimsArg, ".gc_mem");
+    LLValue* newptr = gIR->ir->CreateCall3(fn, arrayTypeInfo, DtoConstSize_t(ndims), dimsArg, ".gc_mem");
 
     // cast to wanted type
     const LLType* dstType = DtoType(arrayType)->getContainedType(1);
@@ -516,7 +517,8 @@ DSliceValue* DtoNewMulDimDynArray(Type* arrayType, DValue** dims, size_t ndims,
     }
 #endif
 
-    return new DSliceValue(arrayType, arrayLen, newptr);
+    assert(firstDim);
+    return new DSliceValue(arrayType, firstDim, newptr);
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////
diff --git a/tangotests/marray3.d b/tangotests/marray3.d
new file mode 100644
index 00000000..eb668e2e
--- /dev/null
+++ b/tangotests/marray3.d
@@ -0,0 +1,23 @@
+module tangotests.marray3;
+
+void main()
+{
+    int[][][] ma = new int[][][](2,4,3);
+    assert(ma.length == 2);
+    assert(ma[0].length == 4);
+    assert(ma[0][0].length == 3);
+    assert(ma[0][1].length == 3);
+    assert(ma[0][2].length == 3);
+    assert(ma[0][3].length == 3);
+    assert(ma[1].length == 4);
+    assert(ma[1][0].length == 3);
+    assert(ma[1][1].length == 3);
+    assert(ma[1][2].length == 3);
+    assert(ma[1][3].length == 3);
+    ma[0][3][1] = 32;
+    ma[1][2][2] = 123;
+    ma[0][0][3] = 55;
+    assert(ma[0][3][1] == 32);
+    assert(ma[1][2][2] == 123);
+    assert(ma[0][0][3] == 55);
+}