diff --git a/.gitignore b/.gitignore
index 3c4efe20..59aff279 100644
--- a/.gitignore
+++ b/.gitignore
@@ -258,4 +258,7 @@ paket-files/
 
 # Python Tools for Visual Studio (PTVS)
 __pycache__/
-*.pyc
\ No newline at end of file
+*.pyc
+
+# Build dirs
+/ttyd-tools/elf2rel/build/
diff --git a/ttyd-tools/elf2rel/CMakeLists.txt b/ttyd-tools/elf2rel/CMakeLists.txt
new file mode 100644
index 00000000..cab61dc6
--- /dev/null
+++ b/ttyd-tools/elf2rel/CMakeLists.txt
@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.15)
+project(elf2rel)
+
+set(CMAKE_CXX_STANDARD 17)
+
+find_package( Boost REQUIRED COMPONENTS program_options )
+include_directories( ${Boost_INCLUDE_DIRS} )
+
+include_directories(.)
+include_directories(elfio)
+
+add_executable(elf2rel
+    elf2rel.cpp)
+    
+target_link_libraries(elf2rel ${Boost_PROGRAM_OPTIONS_LIBRARY} ${Boost_REGEX_LIBRARY})
+
diff --git a/ttyd-tools/elf2rel/elf2rel.h b/ttyd-tools/elf2rel/elf2rel.h
index 2fb5ad05..feba8721 100644
--- a/ttyd-tools/elf2rel/elf2rel.h
+++ b/ttyd-tools/elf2rel/elf2rel.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <vector>
+#include <cstdint>
 
 enum RelRelocationType
 {