diff --git a/compiler/src/prog8/optimizer/ConstantFoldingOptimizer.kt b/compiler/src/prog8/optimizer/ConstantFoldingOptimizer.kt
index ef77e5171..39018b79a 100644
--- a/compiler/src/prog8/optimizer/ConstantFoldingOptimizer.kt
+++ b/compiler/src/prog8/optimizer/ConstantFoldingOptimizer.kt
@@ -102,7 +102,7 @@ internal class ConstantFoldingOptimizer(private val program: Program, private va
                             else -> {}
                         }
                         // create the array itself, filled with the fillvalue.
-                        val array = Array(size) {fillvalue}.map { NumericLiteralValue.optimalInteger(it, numericLv.position) as Expression}.toTypedArray()
+                        val array = Array(size) {fillvalue}.map { NumericLiteralValue(ArrayElementTypes.getValue(decl.datatype), it, numericLv.position) as Expression}.toTypedArray()
                         val refValue = ArrayLiteralValue(InferredTypes.InferredType.known(decl.datatype), array, position = numericLv.position)
                         decl.value = refValue
                         refValue.parent=decl
diff --git a/examples/test.p8 b/examples/test.p8
index 7410d34a5..bce031b8f 100644
--- a/examples/test.p8
+++ b/examples/test.p8
@@ -4,7 +4,7 @@
 
 
 main {
-    uword[2] array1 = 1        ; TODO fix compiler crash about init value type
+    uword[2] array1 = 1
 
 
     sub start() {