diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8ff91eedb..9c42bf655 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -265,6 +265,7 @@ if(NOT CMAKE_SYSTEM_NAME STREQUAL "Generic")
 else()
 	if(DEFINED 3DS)
 		check_function_exists(snprintf_l HAVE_SNPRINTF_L)
+		check_function_exists(strtof_l HAVE_STRTOF_L)
 		check_function_exists(newlocale HAVE_NEWLOCALE)
 		check_function_exists(freelocale HAVE_FREELOCALE)
 		check_function_exists(uselocale HAVE_USELOCALE)