1 files changed, 1 insertions, 1 deletions
diff --git a/core/fpdfapi/parser/cpdf_simple_parser.h b/core/fpdfapi/parser/cpdf_simple_parser.h
index c638b8a04b..0ff6985660 100644
--- a/core/fpdfapi/parser/cpdf_simple_parser.h
+++ b/core/fpdfapi/parser/cpdf_simple_parser.h
@@ -13,7 +13,7 @@
 class CPDF_SimpleParser {
  public:
   CPDF_SimpleParser(const uint8_t* pData, uint32_t dwSize);
-  CPDF_SimpleParser(const CFX_ByteStringC& str);
+  explicit CPDF_SimpleParser(const CFX_ByteStringC& str);
 
   CFX_ByteStringC GetWord();