diff --git a/src/spdlog.cpp b/src/spdlog.cpp
index 85296782..47539524 100644
--- a/src/spdlog.cpp
+++ b/src/spdlog.cpp
@@ -2,6 +2,7 @@
 // Distributed under the MIT License (http://opensource.org/licenses/MIT)
 
 #include <memory>
+#include <cassert>
 
 #include "spdlog/spdlog.h"
 #include "spdlog/common.h"
@@ -30,7 +31,10 @@ void set_global_logger(std::shared_ptr<logger> global_logger) {
     context()->set_logger(std::move(global_logger));
 }
 
-logger *global_logger_raw() noexcept { return context_ref()->global_logger_raw(); }
+logger *global_logger_raw() noexcept {
+    assert(context_ref()->global_logger_raw() != nullptr);
+    return context_ref()->global_logger_raw();
+}
 
 void set_formatter(std::unique_ptr<formatter> formatter) {
     global_logger()->set_formatter(std::move(formatter));