diff --git a/contractabi/selector.nim b/contractabi/selector.nim
index 8cdfa3c..42f827f 100644
--- a/contractabi/selector.nim
+++ b/contractabi/selector.nim
@@ -40,7 +40,10 @@ solidityType Address, "address"
 
 func solidityType*[N: static int, T](_: type array[N, T]): string =
   when T is byte:
-    "bytes" & $N
+    when 0 < N and N <= 32:
+      "bytes" & $N
+    else:
+      "bytes1[" & $N & "]"
   else:
     solidityType(T) & "[" & $N & "]"
 
diff --git a/tests/contractabi/testSelector.nim b/tests/contractabi/testSelector.nim
index 808d067..913371b 100644
--- a/tests/contractabi/testSelector.nim
+++ b/tests/contractabi/testSelector.nim
@@ -22,6 +22,9 @@ suite "function selector":
     check solidityType(Address) == "address"
     check solidityType(array[4, byte]) == "bytes4"
     check solidityType(array[16, byte]) == "bytes16"
+    check solidityType(array[32, byte]) == "bytes32"
+    check solidityType(array[0, byte]) == "bytes1[0]"
+    check solidityType(array[33, byte]) == "bytes1[33]"
     check solidityType(seq[byte]) == "bytes"
     check solidityType(array[4, string]) == "string[4]"
     check solidityType(seq[string]) == "string[]"