diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4e2d29366..0fc2ef822 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -76,6 +76,10 @@ target_include_directories(msr2data
 target_link_libraries(msr2data ${ROOT_LIBRARIES} ${MUSRFIT_LIBS})
 
 add_executable(msr2msr msr2msr.cpp classes/PStringUtils.cpp)
+target_include_directories(msr2msr
+  BEFORE PRIVATE 
+    $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/src/include>
+)
 target_link_libraries(msr2msr ${ROOT_LIBRARIES})
 
 add_executable(musrfit musrfit.cpp)