diff --git a/projects/ExtraTests/X12-CustomDebugBreakMacro.cpp b/projects/ExtraTests/X12-CustomDebugBreakMacro.cpp
new file mode 100644
index 00000000..25ab4a0e
--- /dev/null
+++ b/projects/ExtraTests/X12-CustomDebugBreakMacro.cpp
@@ -0,0 +1,17 @@
+// X12-CustomDebugBreakMacro.cpp
+// Test that user-defined `CATCH_BREAK_INTO_DEBUGGER` is respected and used.
+
+#include <iostream>
+
+void custom_debug_break() {
+    std::cerr << "Pretty please, break into debugger\n";
+}
+
+#define CATCH_BREAK_INTO_DEBUGGER() custom_debug_break()
+
+#define CATCH_CONFIG_MAIN
+#include <catch2/catch.hpp>
+
+TEST_CASE("Failing test that breaks into debugger", "[macros]") {
+    REQUIRE(1 == 2);
+}
diff --git a/tests/ExtraTests/CMakeLists.txt b/tests/ExtraTests/CMakeLists.txt
index b534fc8d..05c444f4 100644
--- a/tests/ExtraTests/CMakeLists.txt
+++ b/tests/ExtraTests/CMakeLists.txt
@@ -142,6 +142,14 @@ if (MSVC)
     add_test(NAME WindowsHeader COMMAND WindowsHeader -r compact)
 endif()
 
+add_executable(DebugBreakMacros ${TESTS_DIR}/X12-CustomDebugBreakMacro.cpp)
+add_test(NAME DebugBreakMacros COMMAND DebugBreakMacros --break)
+set_tests_properties(
+    DebugBreakMacros
+  PROPERTIES
+    PASS_REGULAR_EXPRESSION "Pretty please, break into debugger"
+)
+
 set( EXTRA_TEST_BINARIES
     PrefixedMacros
     DisabledMacros
@@ -150,6 +158,7 @@ set( EXTRA_TEST_BINARIES
     FallbackStringifier
     DisableStringification
     BenchmarkingMacros
+    DebugBreakMacros
 )
 
 # Shared config