diff --git a/recipes/core/relibc/recipe.toml b/recipes/core/relibc/recipe.toml
index 680e01b8ce..b0700a901a 100644
--- a/recipes/core/relibc/recipe.toml
+++ b/recipes/core/relibc/recipe.toml
@@ -62,6 +62,9 @@ patches = [
     "P3-stddef-reorder.patch",
     # ld.so: parse DT_RPATH in addition to DT_RUNPATH (RUNPATH takes precedence per gABI)
     "P3-ldso-rpath-support.patch",
+
+    # stdio_ext.h + __freadahead / __fseterr (m4/bison/flex gnulib compatibility)
+    "P3-stdio-fseterr.patch",
 ]
 
 [build]