diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 851cc0c..9f0620d 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -3,6 +3,7 @@ cmake_minimum_required(VERSION 3.9)
 project(erc-test)
 
 set(CMAKE_BUILD_TYPE Debug)
+set(CMAKE_COLOR_MAKEFILE OFF)
 
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DHEADLESS -DTESTING")