diff --git a/include/CLI/App.hpp b/include/CLI/App.hpp
index cd09dce..2b864a7 100644
--- a/include/CLI/App.hpp
+++ b/include/CLI/App.hpp
@@ -817,7 +817,7 @@ protected:
 
         if(require_subcommand_ < 0 && selected_subcommands_.size() == 0)
             throw RequiredError("Subcommand required");
-        else if(require_subcommand_ > 0 && selected_subcommands_.size() != require_subcommand_)
+        else if(require_subcommand_ > 0 && selected_subcommands_.size() != (int) require_subcommand_)
             throw RequiredError(std::to_string(require_subcommand_) + " subcommand(s) required");
 
         // Convert missing (pairs) to extras (string only)
diff --git a/tests/AppTest.cpp b/tests/AppTest.cpp
index 3e65edf..55702e7 100644
--- a/tests/AppTest.cpp
+++ b/tests/AppTest.cpp
@@ -518,8 +518,8 @@ TEST_F(TApp, RequiresMultiFlags) {
 
 TEST_F(TApp, RequiresMixedFlags) {
     CLI::Option* opt1 = app.add_flag("--opt1");
-    CLI::Option* opt2 = app.add_flag("--opt2");
-    CLI::Option* opt3 = app.add_flag("--opt3");
+    app.add_flag("--opt2");
+    app.add_flag("--opt3");
     app.add_flag("--optall")->requires(opt1, "--opt2", "--opt3");
 
     EXPECT_NO_THROW(run());