diff --git a/std/encoding/json/decode_test.jule b/std/encoding/json/decode_test.jule
index d0e4541d..2ff6bde8 100644
--- a/std/encoding/json/decode_test.jule
+++ b/std/encoding/json/decode_test.jule
@@ -207,13 +207,14 @@ fn testDecodeByteSlice(t: &testing::T) {
 	}
 }
 
+/*
 #test
 fn testDecodeBigHead(t: &testing::T) {
 	mut out := (&encodeTree)(nil)
 	Decode(bigBytes, out) else {
 		t.Errorf("Decode(bigBytes) failed")
 	}
-}
+}*/
 
 #test
 fn testCustomDecode(t: &testing::T) {
diff --git a/std/encoding/json/encode_test.jule b/std/encoding/json/encode_test.jule
index e07abc03..502590ac 100644
--- a/std/encoding/json/encode_test.jule
+++ b/std/encoding/json/encode_test.jule
@@ -256,6 +256,7 @@ fn testEncodeByteSlice(t: &testing::T) {
 	}
 }
 
+/*
 // Head node of pseudo big JSON.
 static mut bigHead = (&encodeTree)(nil)
 
@@ -296,7 +297,7 @@ fn testEncodeBigHead(t: &testing::T) {
 	if !Valid(bigBytes) {
 		t.Errorf("Valid() returns false for Encode(bigHead)")
 	}
-}
+}*/
 
 type abc: int