diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0b9a349..5362656 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,6 +1,6 @@
 set(HEADER_LIST "${Geometry_SOURCE_DIR}/include/Geometry/dummy.h")
 
-add_library(Geometry Dummy.cpp ${HEADER_LIST})
+add_library(Geometry dummy.cpp ${HEADER_LIST})
 
 target_include_directories(Geometry PUBLIC "${PROJECT_SOURCE_DIR}/include")
 
diff --git a/src/Dummy.cpp b/src/dummy.cpp
similarity index 100%
rename from src/Dummy.cpp
rename to src/dummy.cpp