diff --git a/README.md b/README.md
index 5d84c3f27..af4f8cbad 100644
--- a/README.md
+++ b/README.md
@@ -840,6 +840,7 @@ I deeply appreciate the help of the following people.
 - [tinloaf](https://github.com/tinloaf) made sure all pushed warnings are properly popped.
 - [Fytch](https://github.com/Fytch) found a bug in the documentation.
 - [Jay Sistar](https://github.com/Type1J) implemented a Meson build description
+- [Henry Lee](https://github.com/HenryRLee) fixed a warning in ICC
 
 Thanks a lot for helping out! Please [let me know](mailto:mail@nlohmann.me) if I forgot someone.
 
diff --git a/test/src/unit-iterators1.cpp b/test/src/unit-iterators1.cpp
index 2dc9aae84..783bf850a 100644
--- a/test/src/unit-iterators1.cpp
+++ b/test/src/unit-iterators1.cpp
@@ -1513,70 +1513,70 @@ TEST_CASE("iterators 1")
     }
 
     SECTION("conversion from iterator to const iterator")
-	{
+    {
         SECTION("boolean")
-		{
+        {
             json j = true;
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("string")
-		{
+        {
             json j = "hello world";
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("array")
-		{
+        {
             json j = {1, 2, 3};
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("object")
-		{
+        {
             json j = {{"A", 1}, {"B", 2}, {"C", 3}};
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("number (integer)")
-		{
+        {
             json j = 23;
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("number (unsigned)")
-		{
+        {
             json j = 23u;
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("number (float)")
-		{
+        {
             json j = 23.42;
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
         SECTION("null")
-		{
+        {
             json j = nullptr;
-			json::const_iterator it = j.begin();
-			CHECK(it == j.cbegin());
-			it = j.begin();
-			CHECK(it == j.cbegin());
-		}
-	}
+            json::const_iterator it = j.begin();
+            CHECK(it == j.cbegin());
+            it = j.begin();
+            CHECK(it == j.cbegin());
+        }
+    }
 }