diff --git a/.gitignore b/.gitignore
index 8157f1a9..35dc9b42 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ fuzz-testing
 
 build
 build_coverage
+clang_analyze_build
 
 doc/xml
 doc/html
diff --git a/Makefile b/Makefile
index ee9a64f1..ed0a7a5c 100644
--- a/Makefile
+++ b/Makefile
@@ -259,6 +259,12 @@ fuzzing-stop:
 cppcheck:
 	cppcheck --enable=warning --inconclusive --force --std=c++11 $(AMALGAMATED_FILE) --error-exitcode=1
 
+# compile and check with Clang Static Analyzer
+clang_analyze:
+	rm -fr clang_analyze_build
+	mkdir clang_analyze_build
+	cd clang_analyze_build ; CCC_CXX=/Users/niels/Documents/projects/llvm-clang/local/bin/clang++ /Users/niels/Documents/projects/llvm-clang/local/bin/scan-build cmake ..
+	/Users/niels/Documents/projects/llvm-clang/local/bin/scan-build -enable-checker alpha.core.DynamicTypeChecker,alpha.core.PointerArithm,alpha.core.PointerSub,alpha.cplusplus.DeleteWithNonVirtualDtor,alpha.cplusplus.IteratorRange,alpha.cplusplus.MisusedMovedObject,alpha.security.ArrayBoundV2,alpha.core.Conversion --use-c++=/Users/niels/Documents/projects/llvm-clang/local/bin/clang++ --view -analyze-headers -o clang_analyze_build/report.html make -j10 -C clang_analyze_build
 
 ##########################################################################
 # maintainer targets
diff --git a/include/nlohmann/json.hpp b/include/nlohmann/json.hpp
index f1b7e5dd..49cce53d 100644
--- a/include/nlohmann/json.hpp
+++ b/include/nlohmann/json.hpp
@@ -5180,7 +5180,7 @@ class basic_json
 
         // passed iterators must belong to objects
         if (JSON_UNLIKELY(not first.m_object->is_object()
-                          or not first.m_object->is_object()))
+                          or not last.m_object->is_object()))
         {
             JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects"));
         }
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 92123591..656afa10 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -15091,7 +15091,7 @@ class basic_json
 
         // passed iterators must belong to objects
         if (JSON_UNLIKELY(not first.m_object->is_object()
-                          or not first.m_object->is_object()))
+                          or not last.m_object->is_object()))
         {
             JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects"));
         }
diff --git a/test/src/unit-readme.cpp b/test/src/unit-readme.cpp
index bdcbd73e..45d43879 100644
--- a/test/src/unit-readme.cpp
+++ b/test/src/unit-readme.cpp
@@ -152,6 +152,10 @@ TEST_CASE("README", "[hide]")
             j.push_back(1);
             j.push_back(true);
 
+            // comparison
+            bool x = (j == "[\"foo\", 1, true]"_json);  // true
+            CHECK(x == true);
+
             // iterate the array
             for (json::iterator it = j.begin(); it != j.end(); ++it)
             {
@@ -168,6 +172,7 @@ TEST_CASE("README", "[hide]")
             const std::string tmp = j[0];
             j[1] = 42;
             bool foo = j.at(2);
+            CHECK(foo == true);
 
             // other stuff
             j.size();     // 3 entries
@@ -175,9 +180,6 @@ TEST_CASE("README", "[hide]")
             j.type();     // json::value_t::array
             j.clear();    // the array is empty again
 
-            // comparison
-            bool x = (j == "[\"foo\", 1, true]"_json);  // true
-
             // create an object
             json o;
             o["foo"] = 23;
@@ -257,17 +259,21 @@ TEST_CASE("README", "[hide]")
             bool b1 = true;
             json jb = b1;
             bool b2 = jb;
+            CHECK(b2 == true);
 
             // numbers
             int i = 42;
             json jn = i;
             double f = jn;
+            CHECK(f == 42);
 
             // etc.
 
             std::string vs = js.get<std::string>();
             bool vb = jb.get<bool>();
+            CHECK(vb == true);
             int vi = jn.get<int>();
+            CHECK(vi == 42);
 
             // etc.
         }