diff --git a/CMakeLists.txt b/CMakeLists.txt
index c641684ed73af5f0b49ec2e728499d3856d38724..2a7884855c9acc648b1cfb8c993cf7314bcd87f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -38,6 +38,7 @@ FetchContent_Declare(
     GIT_TAG        10.2.1 # or a later release
 )
 
+set(FMT_SYSTEM_HEADERS ON)
 FetchContent_MakeAvailable(fmt)
 
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