diff --git a/.gitmodules b/.gitmodules
index 0e49f1a..2a54fa4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "vendors/doctest"]
 	path = vendors/doctest
 	url = https://github.com/onqtam/doctest
+[submodule "vendors/fmtlib"]
+	path = vendors/fmtlib
+	url = https://github.com/fmtlib/fmt
diff --git a/CMakeLists.txt b/CMakeLists.txt
index cdc794d..035b5df 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,6 +45,7 @@ if(BUILD_AS_STANDALONE)
     if(BUILD_WITH_UNTESTS)
         enable_testing()
         add_subdirectory(vendors/doctest)
+        add_subdirectory(vendors/fmtlib)
         add_subdirectory(untests)
     endif()
 endif()
diff --git a/untests/CMakeLists.txt b/untests/CMakeLists.txt
index 2fc86fc..3ec4640 100644
--- a/untests/CMakeLists.txt
+++ b/untests/CMakeLists.txt
@@ -18,7 +18,7 @@ endif()
 
 file(GLOB_RECURSE UNTESTS_SOURCES "*.cpp" "*.hpp")
 add_executable(${PROJECT_NAME} ${UNTESTS_SOURCES})
-target_link_libraries(${PROJECT_NAME} meta.hpp doctest_with_main)
+target_link_libraries(${PROJECT_NAME} meta.hpp doctest_with_main fmt)
 
 target_compile_options(${PROJECT_NAME}
     PRIVATE
diff --git a/vendors/fmtlib b/vendors/fmtlib
new file mode 160000
index 0000000..b6f4cea
--- /dev/null
+++ b/vendors/fmtlib
@@ -0,0 +1 @@
+Subproject commit b6f4ceaed0a0a24ccf575fab6c56dd50ccf6f1a9