diff --git a/CMakeLists.txt b/CMakeLists.txt
index e197432..edd874b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,12 +48,6 @@ CPMAddPackage(
         VERSION 1.6
         DOWNLOAD_ONLY YES
 )
-CPMAddPackage(
-        NAME doctest
-        GITHUB_REPOSITORY doctest/doctest
-        GIT_TAG 2.4.0
-        DOWNLOAD_ONLY YES
-)
 CPMAddPackage(
         NAME  pcg-cpp
         GITHUB_REPOSITORY  imneme/pcg-cpp
@@ -61,7 +55,6 @@ CPMAddPackage(
         DOWNLOAD_ONLY YES
 )
 target_include_directories(Arbutils PUBLIC ${backward_SOURCE_DIR})
-target_include_directories(Arbutils PUBLIC ${doctest_SOURCE_DIR}/doctest)
 target_include_directories(Arbutils PUBLIC ${pcg-cpp_SOURCE_DIR}/include)
 
 # If we are building for Windows we need to set some specific variables.
@@ -98,10 +91,18 @@ endif(STATICC)
 target_link_libraries(Arbutils ${LINKS})
 
 if (TESTS)
+    CPMAddPackage(
+            NAME doctest
+            GITHUB_REPOSITORY doctest/doctest
+            GIT_TAG 2.4.0
+            DOWNLOAD_ONLY YES
+    )
+
     # If we want a tests executable, grab all tests source files
     file(GLOB_RECURSE TEST_FILES "tests/*.cpp" "tests/*.hpp")
     # And create an executable from it. Also include doctest.hpp.
     add_executable(ArbutilsTests ${TEST_FILES})
+    target_include_directories(ArbutilsTests PUBLIC ${doctest_SOURCE_DIR}/doctest)
     # And finally link the library to the executable.
     target_link_libraries(ArbutilsTests Arbutils ${LINKS})
     # Add a compilation definition to the code that we are building a test build.