diff --git a/CInterface/Core.cpp b/CInterface/Core.h
similarity index 100%
rename from CInterface/Core.cpp
rename to CInterface/Core.h
diff --git a/CInterface/Random.cpp b/CInterface/Random.h
similarity index 100%
rename from CInterface/Random.cpp
rename to CInterface/Random.h
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 44a4409..ba24753 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,7 @@ if (NOT WINDOWS)
 endif()
 
 # Grab all cpp and hpp files in our source directories.
-file(GLOB_RECURSE SRC_FILES "src/*.cpp" "src/*.hpp" "CInterface/*.cpp" "CInterface/*.hpp")
+file(GLOB_RECURSE SRC_FILES "src/*.cpp" "src/*.hpp" "CInterface/*.cpp" "CInterface/*.hpp" "CInterface/*.h")
 add_library(Arbutils ${LIBTYPE} ${SRC_FILES})
 target_precompile_headers(Arbutils PUBLIC src/Precompiled.hxx)