diff --git a/include/nlohmann/detail/input/lexer.hpp b/include/nlohmann/detail/input/lexer.hpp
index b50e188c6..f055584fd 100644
--- a/include/nlohmann/detail/input/lexer.hpp
+++ b/include/nlohmann/detail/input/lexer.hpp
@@ -1495,7 +1495,7 @@ scan_number_done:
         {
             get();
         }
-        while (current == ' ' or current == '\t' or current == '\n' or current == '\r');
+        while (current == ' ' || current == '\t' || current == '\n' || current == '\r');
     }
 
     token_type scan()
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 315744dcb..f55803d45 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -9609,7 +9609,7 @@ scan_number_done:
         {
             get();
         }
-        while (current == ' ' or current == '\t' or current == '\n' or current == '\r');
+        while (current == ' ' || current == '\t' || current == '\n' || current == '\r');
     }
 
     token_type scan()