diff --git a/math/nlopt/files/patch-CMakeLists.txt b/math/nlopt/files/patch-CMakeLists.txt
deleted file mode 100644
index 4cc24139004e..000000000000
--- a/math/nlopt/files/patch-CMakeLists.txt
+++ /dev/null
@@ -1,11 +0,0 @@
---- CMakeLists.txt.orig	2025-02-04 18:29:30 UTC
-+++ CMakeLists.txt
-@@ -147,7 +147,7 @@ if (NLOPT_CXX OR NLOPT_PYTHON OR NLOPT_GUILE OR NLOPT_
- if (NLOPT_CXX OR NLOPT_PYTHON OR NLOPT_GUILE OR NLOPT_OCTAVE OR NLOPT_JAVA)
-   check_cxx_symbol_exists (__cplusplus ciso646 SYSTEM_HAS_CXX)
-   if (SYSTEM_HAS_CXX)
--    set (CMAKE_CXX_STANDARD 11) # set the standard to C++11 but do not require it
-+    set (CMAKE_CXX_STANDARD 17) # set the standard to C++17 but do not require it
- 
-     if (NLOPT_CXX)
-       set (CMAKE_CXX_STANDARD_REQUIRED ON) # if we build C++ API, we do need C++11