diff --git a/arm-software/embedded/arm-runtimes/CMakeLists.txt b/arm-software/embedded/arm-runtimes/CMakeLists.txt
index 6153156f04fc..446da9846ca5 100644
--- a/arm-software/embedded/arm-runtimes/CMakeLists.txt
+++ b/arm-software/embedded/arm-runtimes/CMakeLists.txt
@@ -816,6 +816,7 @@ if(C_LIBRARY STREQUAL llvmlibc)
         -DLIBC_CONF_ERRNO_MODE=LIBC_ERRNO_MODE_SHARED
         -DLIBC_CONF_PRINTF_DISABLE_FLOAT=OFF
         -DLIBC_CONF_PRINTF_FLOAT_TO_STR_USE_FLOAT320=ON
+        -DLIBC_CONF_PRINTF_MODULAR=ON
         -DLLVM_CMAKE_DIR=${LLVM_BINARY_DIR}/lib/cmake/llvm
         -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON
         -DLLVM_ENABLE_RUNTIMES=libc