diff --git a/std/exception.d b/std/exception.d
index 4501d378d..e853d8cf8 100644
--- a/std/exception.d
+++ b/std/exception.d
@@ -1966,7 +1966,7 @@ unittest
             return ThrowingRange();
         })();
 
-    save.save();
+    save.save;
 
     auto slice = f.handle!(Exception,
         RangePrimitive.opSlice, (e, r) => ThrowingRange())();
diff --git a/std/experimental/logger/multilogger.d b/std/experimental/logger/multilogger.d
index 18ec7213d..dcf1d2661 100644
--- a/std/experimental/logger/multilogger.d
+++ b/std/experimental/logger/multilogger.d
@@ -75,7 +75,7 @@ class MultiLogger : Logger
             if (this.logger[i].name == toRemove)
             {
                 Logger ret = this.logger[i].logger;
-                this.logger[i] = this.logger.back();
+                this.logger[i] = this.logger.back;
                 this.logger.popBack();
 
                 return ret;
diff --git a/std/json.d b/std/json.d
index 68549747a..89d2e0f7b 100644
--- a/std/json.d
+++ b/std/json.d
@@ -106,8 +106,8 @@ struct JSONValue
     {
           string s = "{ \"language\": \"D\" }";
           JSONValue j = parseJSON(s);
-          assert(j.type() == JSON_TYPE.OBJECT);
-          assert(j["language"].type() == JSON_TYPE.STRING);
+          assert(j.type == JSON_TYPE.OBJECT);
+          assert(j["language"].type == JSON_TYPE.STRING);
     }
 
     /**
@@ -173,12 +173,10 @@ struct JSONValue
         JSONValue j = [ "language": "D" ];
 
         // get value
-        assert(j["language"].str() == "D");
-        // str() or str is ok
         assert(j["language"].str == "D");
 
         // change existing key to new string
-        j["language"].str("Perl");
+        j["language"].str = "Perl";
         assert(j["language"].str == "Perl");
     }
 
@@ -384,10 +382,10 @@ struct JSONValue
         j = JSONValue(42);
 
         j = JSONValue( [1, 2, 3] );
-        assert(j.type() == JSON_TYPE.ARRAY);
+        assert(j.type == JSON_TYPE.ARRAY);
 
         j = JSONValue( ["language": "D"] );
-        assert(j.type() == JSON_TYPE.OBJECT);
+        assert(j.type == JSON_TYPE.OBJECT);
     }
 
     void opAssign(T)(T arg) if(!isStaticArray!T && !is(T : JSONValue))
@@ -431,7 +429,7 @@ struct JSONValue
     unittest
     {
         JSONValue j = JSONValue( ["language": "D"] );
-        assert( j["language"].str() == "D" );
+        assert( j["language"].str == "D" );
     }
 
     /// Operator sets $(D value) for element of JSON object by $(D key)
diff --git a/std/zip.d b/std/zip.d
index 8018c0070..9c7019b16 100644
--- a/std/zip.d
+++ b/std/zip.d
@@ -833,7 +833,7 @@ unittest
             ams[i].expandedData = new ubyte[](uniform(minSize, maxSize));
             foreach (ref ubyte c; ams[i].expandedData)
                 c = cast(ubyte)(uniform(0, 256));
-            ams[i].compressionMethod(CompressionMethod.deflate);
+            ams[i].compressionMethod = CompressionMethod.deflate;
             zip1.addMember(ams[i]);
         }
         auto zippedData = zip1.build();