diff --git a/source/dub/generators/build.d b/source/dub/generators/build.d
index 8db2c32..cdcde08 100644
--- a/source/dub/generators/build.d
+++ b/source/dub/generators/build.d
@@ -142,7 +142,7 @@
 		return cached;
 	}
 
-	bool performCachedBuild(GeneratorSettings settings, BuildSettings buildsettings, in Package pack, string config, string build_id, in Package[] packages, in Path[] additional_dep_files)
+	private bool performCachedBuild(GeneratorSettings settings, BuildSettings buildsettings, in Package pack, string config, string build_id, in Package[] packages, in Path[] additional_dep_files)
 	{
 		auto cwd = Path(getcwd());
 		auto target_path = pack.path ~ format(".dub/build/%s/", build_id);
@@ -181,7 +181,7 @@
 		return false;
 	}
 
-	void performRDMDBuild(GeneratorSettings settings, ref BuildSettings buildsettings, in Package pack, string config)
+	private void performRDMDBuild(GeneratorSettings settings, ref BuildSettings buildsettings, in Package pack, string config)
 	{
 		auto cwd = Path(getcwd());
 		//Added check for existance of [AppNameInPackagejson].d
@@ -247,7 +247,7 @@
 		}
 	}
 
-	void performDirectBuild(GeneratorSettings settings, ref BuildSettings buildsettings, in Package pack, string config)
+	private void performDirectBuild(GeneratorSettings settings, ref BuildSettings buildsettings, in Package pack, string config)
 	{
 		auto cwd = Path(getcwd());
 
@@ -404,7 +404,7 @@
 		return objPath;
 	}
 
-	void buildWithCompiler(GeneratorSettings settings, BuildSettings buildsettings)
+	private void buildWithCompiler(GeneratorSettings settings, BuildSettings buildsettings)
 	{
 		auto generate_binary = !(buildsettings.options & BuildOption.syntaxOnly);
 		auto is_static_library = buildsettings.targetType == TargetType.staticLibrary || buildsettings.targetType == TargetType.library;
@@ -480,7 +480,7 @@
 		}
 	}
 
-	void runTarget(Path exe_file_path, in BuildSettings buildsettings, string[] run_args, GeneratorSettings settings)
+	private void runTarget(Path exe_file_path, in BuildSettings buildsettings, string[] run_args, GeneratorSettings settings)
 	{
 		if (buildsettings.targetType == TargetType.executable) {
 			auto cwd = Path(getcwd());
@@ -515,7 +515,7 @@
 			enforce(false, "Target is a library. Skipping execution.");
 	}
 
-	void cleanupTemporaries()
+	private void cleanupTemporaries()
 	{
 		foreach_reverse (f; m_temporaryFiles) {
 			try {
diff --git a/source/dub/generators/cmake.d b/source/dub/generators/cmake.d
index 529cccd..fcf0b94 100644
--- a/source/dub/generators/cmake.d
+++ b/source/dub/generators/cmake.d
@@ -95,14 +95,14 @@
                 script.put(
                     "target_link_libraries(%s %s %s)\n".format(
                         name,
-                        (info.dependencies ~ info.linkDependencies).dup.stdsort.uniq.map!sanitize.join(" "),
+                        (info.dependencies ~ info.linkDependencies).dup.stdsort.uniq.map!(s => sanitize(s)).join(" "),
                         info.buildSettings.libs.dup.join(" ")
                     )
                 );
                 script.put(
                     `set_target_properties(%s PROPERTIES TEXT_INCLUDE_DIRECTORIES "%s")`.format(
                         name,
-                        info.buildSettings.stringImportPaths.map!sanitizeSlashes.join(";")
+                        info.buildSettings.stringImportPaths.map!(s => sanitizeSlashes(s)).join(";")
                     ) ~ "\n"
                 );
             }
@@ -136,12 +136,12 @@
 }
 
 ///Transform a package name into a valid CMake target name.
-string sanitize(string name)
+private string sanitize(string name)
 {
     return name.replace(":", "_");
 }
 
-string sanitizeSlashes(string path)
+private string sanitizeSlashes(string path)
 {
     version(Windows)
         return path.replace("\\", "/");
diff --git a/source/dub/generators/sublimetext.d b/source/dub/generators/sublimetext.d
index 7b35199..d3970fa 100644
--- a/source/dub/generators/sublimetext.d
+++ b/source/dub/generators/sublimetext.d
@@ -36,7 +36,7 @@
 		logDebug("About to generate sublime project for %s.", m_project.rootPackage.name);
 		
 		auto root = Json([
-			"folders": targets.byValue.map!targetFolderJson.array.Json,
+			"folders": targets.byValue.map!(f => targetFolderJson(f)).array.Json,
 			"build_systems": buildSystems(settings.platform),
 			"settings": [ "include_paths": buildSettings.importPaths.map!Json.array.Json ].Json,
 		]);
@@ -53,7 +53,7 @@
 }
 
 
-Json targetFolderJson(in ProjectGenerator.TargetInfo target)
+private Json targetFolderJson(in ProjectGenerator.TargetInfo target)
 {
 	return [
 		"name": target.pack.name.Json,
@@ -64,7 +64,7 @@
 }
 
 
-Json buildSystems(BuildPlatform buildPlatform, string workingDiretory = getcwd())
+private Json buildSystems(BuildPlatform buildPlatform, string workingDiretory = getcwd())
 {
 	enum BUILD_TYPES = [
 		//"plain",
diff --git a/source/dub/generators/visuald.d b/source/dub/generators/visuald.d
index f4e7abb..d9e324b 100644
--- a/source/dub/generators/visuald.d
+++ b/source/dub/generators/visuald.d
@@ -446,7 +446,7 @@
 	}
 
 	// TODO: nice folders
-	struct SourceFile {
+	private struct SourceFile {
 		Path structurePath;
 		Path filePath;
 		bool build;
@@ -478,7 +478,7 @@
 		}
 	}
 
-	auto sortedSources(SourceFile[] sources) {
+	private auto sortedSources(SourceFile[] sources) {
 		return sort(sources);
 	}