diff --git a/tests/src/unit-bjdata.cpp b/tests/src/unit-bjdata.cpp
index 5f0836348..fe4aa97c5 100644
--- a/tests/src/unit-bjdata.cpp
+++ b/tests/src/unit-bjdata.cpp
@@ -2541,13 +2541,13 @@ TEST_CASE("BJData")
                 CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vL), "[json.exception.parse_error.113] parse error at byte 11: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                 CHECK(json::from_bjdata(vL, true, false).is_discarded());
 
-                if(sizeof(size_t)==4)
+                if (sizeof(std::size_t) == 4)
                 {
-                     CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.parse_error.408] parse error at byte 17: syntax error while parsing BJData size: integer value overflow", json::parse_error&);
+                    CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.parse_error.408] parse error at byte 17: syntax error while parsing BJData size: integer value overflow", json::parse_error&);
                 }
                 else
                 {
-                     CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.parse_error.408] parse error at byte 18: syntax error while parsing BJData size: excessive ndarray size caused overflow", json::parse_error&);
+                    CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.parse_error.408] parse error at byte 18: syntax error while parsing BJData size: excessive ndarray size caused overflow", json::parse_error&);
                 }
                 CHECK(json::from_bjdata(vM, true, false).is_discarded());
             }