diff --git a/toolchain/uClibc/uClibc-0.9.29-wchar.config b/toolchain/uClibc/uClibc-0.9.29-wchar.config
index 5b260dbec6..b15fc6fff1 100644
--- a/toolchain/uClibc/uClibc-0.9.29-wchar.config
+++ b/toolchain/uClibc/uClibc-0.9.29-wchar.config
@@ -94,7 +94,7 @@ MALLOC_GLIBC_COMPAT=y
 UCLIBC_DYNAMIC_ATEXIT=y
 # COMPAT_ATEXIT is not set
 # UCLIBC_SUSV3_LEGACY is not set
-UCLIBC_SUSV3_LEGACY_MACROS=y
+# UCLIBC_SUSV3_LEGACY_MACROS is not set
 UCLIBC_HAS_SHADOW=y
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y
diff --git a/toolchain/uClibc/uClibc-0.9.29.config b/toolchain/uClibc/uClibc-0.9.29.config
index 17a157d6d0..468233a765 100644
--- a/toolchain/uClibc/uClibc-0.9.29.config
+++ b/toolchain/uClibc/uClibc-0.9.29.config
@@ -80,7 +80,7 @@ UCLIBC_DYNAMIC_ATEXIT=y
 # COMPAT_ATEXIT is not set
 HAS_SHADOW=y
 # UCLIBC_SUSV3_LEGACY is not set
-UCLIBC_SUSV3_LEGACY_MACROS=y
+# UCLIBC_SUSV3_LEGACY_MACROS is not set
 UCLIBC_HAS_SHADOW=y
 # UCLIBC_HAS_PROGRAM_INVOCATION_NAME is not set
 UCLIBC_HAS___PROGNAME=y