diff --git a/core/encoding/json/tokenizer.odin b/core/encoding/json/tokenizer.odin
index 5c20a2cc3..1a57ba6f0 100644
--- a/core/encoding/json/tokenizer.odin
+++ b/core/encoding/json/tokenizer.odin
@@ -485,7 +485,7 @@ is_valid_string_literal :: proc(str: string, spec: Specification) -> bool {
 	case '"':
 		// okay
 	case '\'':
-		if spec != .JSON {
+		if spec == .JSON {
 			return false
 		}
 		// okay