diff --git a/src/os/windows/crashlog_win.cpp b/src/os/windows/crashlog_win.cpp
--- a/src/os/windows/crashlog_win.cpp
+++ b/src/os/windows/crashlog_win.cpp
@@ -43,14 +43,14 @@ class CrashLogWindows : public CrashLog 
 	/** Information about the encountered exception */
 	EXCEPTION_POINTERS *ep;
 
-	/* virtual */ char *LogOSVersion(char *buffer, const char *last) const;
-	/* virtual */ char *LogError(char *buffer, const char *last, const char *message) const;
-	/* virtual */ char *LogStacktrace(char *buffer, const char *last) const;
-	/* virtual */ char *LogRegisters(char *buffer, const char *last) const;
-	/* virtual */ char *LogModules(char *buffer, const char *last) const;
+	char *LogOSVersion(char *buffer, const char *last) const override;
+	char *LogError(char *buffer, const char *last, const char *message) const override;
+	char *LogStacktrace(char *buffer, const char *last) const override;
+	char *LogRegisters(char *buffer, const char *last) const override;
+	char *LogModules(char *buffer, const char *last) const override;
 public:
 #if defined(_MSC_VER)
-	/* virtual */ int WriteCrashDump(char *filename, const char *filename_last) const;
+	int WriteCrashDump(char *filename, const char *filename_last) const override;
 	char *AppendDecodedStacktrace(char *buffer, const char *last) const;
 #else
 	char *AppendDecodedStacktrace(char *buffer, const char *last) const { return buffer; }