diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index aeb145b2..13b59ff8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -74,6 +74,7 @@ set(IMPL_HEADERS
   ${SOURCES_DIR}/internal/catch_compiler_capabilities.hpp
   ${SOURCES_DIR}/internal/catch_config_android_logwrite.hpp
   ${SOURCES_DIR}/internal/catch_config_counter.hpp
+  ${SOURCES_DIR}/internal/catch_config_prefix_messages.hpp
   ${SOURCES_DIR}/internal/catch_config_static_analysis_support.hpp
   ${SOURCES_DIR}/internal/catch_config_uncaught_exceptions.hpp
   ${SOURCES_DIR}/internal/catch_config_wchar.hpp
diff --git a/src/catch2/meson.build b/src/catch2/meson.build
index 5b2a047d..aa890bc4 100644
--- a/src/catch2/meson.build
+++ b/src/catch2/meson.build
@@ -80,6 +80,7 @@ internal_headers = [
   'internal/catch_compiler_capabilities.hpp',
   'internal/catch_config_android_logwrite.hpp',
   'internal/catch_config_counter.hpp',
+  'internal/catch_config_prefix_messages.hpp',
   'internal/catch_config_static_analysis_support.hpp',
   'internal/catch_config_uncaught_exceptions.hpp',
   'internal/catch_config_wchar.hpp',