diff --git a/local/recipes/qt/qtbase/recipe.toml b/local/recipes/qt/qtbase/recipe.toml
index 8bcc7a5856..f46b2bf9b3 100644
--- a/local/recipes/qt/qtbase/recipe.toml
+++ b/local/recipes/qt/qtbase/recipe.toml
@@ -97,15 +97,6 @@ long double relibc_compat_cpp_strtold(const char *nptr, char **endptr)
 long double relibc_compat_cpp_strtold(const char *nptr, char **endptr) {
     return strtold(nptr, endptr);
 }
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-FILE *open_memstream(char **ptr, size_t *sizeloc) {
-    *ptr = calloc(1, 1);
-    *sizeloc = 0;
-    return tmpfile();
-}
 EOF
 "${GNU_TARGET}-gcc" \
     --sysroot="${COOKBOOK_SYSROOT}" \