diff --git a/include/coreinit/cosreport.h b/include/coreinit/cosreport.h
new file mode 100644
index 00000000..a3d40fe0
--- /dev/null
+++ b/include/coreinit/cosreport.h
@@ -0,0 +1,59 @@
+#pragma once
+#include <wut.h>
+
+/**
+ * \defgroup coreinit_cosreport COS Report
+ * \ingroup coreinit
+ *
+ * @{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum COSReportLevel{
+    COS_REPORT_LEVEL_ERROR      =   0,
+    COS_REPORT_LEVEL_WARN       =   1,
+    COS_REPORT_LEVEL_INFO       =   2,
+    COS_REPORT_LEVEL_VERBOSE    =   3
+} COSReportLevel;
+
+typedef enum COSReportModule{
+    COS_REPORT_MODULE_UNKNOWN_0    =     0,
+    COS_REPORT_MODULE_UNKNOWN_1    =     1,
+    COS_REPORT_MODULE_UNKNOWN_2    =     2,
+    COS_REPORT_MODULE_UNKNOWN_5    =     5
+} COSReportModule;
+
+void
+COSVReport(COSReportModule module,
+           COSReportLevel level,
+           const char* fmt,
+           ...);
+
+void
+COSError(COSReportModule module,
+         const char* fmt,
+         ...);
+
+void
+COSInfo(COSReportModule module,
+        const char* fmt,
+        ...);
+
+void
+COSVerbose(COSReportModule module,
+           const char* fmt,
+           ...);
+
+void
+COSWarn(COSReportModule module,
+        const char* fmt,
+        ...);
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @} */
\ No newline at end of file
diff --git a/tests/test_compile_headers_common/test_compile_headers_list.h b/tests/test_compile_headers_common/test_compile_headers_list.h
index 547fb74f..34ffba6d 100644
--- a/tests/test_compile_headers_common/test_compile_headers_list.h
+++ b/tests/test_compile_headers_common/test_compile_headers_list.h
@@ -8,6 +8,7 @@
 #include <coreinit/context.h>
 #include <coreinit/core.h>
 #include <coreinit/coroutine.h>
+#include <coreinit/cosreport.h>
 #include <coreinit/debug.h>
 #include <coreinit/dynload.h>
 #include <coreinit/energysaver.h>