diff --git a/support/config-fragments/autobuild/bootlin-x86-i686-musl.config b/support/config-fragments/autobuild/bootlin-x86-i686-musl.config
new file mode 100644
index 0000000000..2afe096f32
--- /dev/null
+++ b/support/config-fragments/autobuild/bootlin-x86-i686-musl.config
@@ -0,0 +1,4 @@
+BR2_i386=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
+BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_X86_I686_MUSL_STABLE=y
diff --git a/support/config-fragments/autobuild/br-i386-pentium-mmx-musl.config b/support/config-fragments/autobuild/br-i386-pentium-mmx-musl.config
deleted file mode 100644
index 1b3c45fe9b..0000000000
--- a/support/config-fragments/autobuild/br-i386-pentium-mmx-musl.config
+++ /dev/null
@@ -1,10 +0,0 @@
-BR2_x86_pentium_mmx=y
-BR2_TOOLCHAIN_EXTERNAL=y
-BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
-BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
-BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.net/toolchains/tarballs/br-i386-pentium-mmx-musl-2020.11.2.tar.bz2"
-BR2_TOOLCHAIN_EXTERNAL_GCC_9=y
-BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
-BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL=y
-# BR2_TOOLCHAIN_EXTERNAL_HAS_SSP is not set
-BR2_TOOLCHAIN_EXTERNAL_CXX=y
diff --git a/support/config-fragments/autobuild/toolchain-configs.csv b/support/config-fragments/autobuild/toolchain-configs.csv
index 2c4fa45fe7..c5ae4d1ecb 100644
--- a/support/config-fragments/autobuild/toolchain-configs.csv
+++ b/support/config-fragments/autobuild/toolchain-configs.csv
@@ -39,6 +39,7 @@ support/config-fragments/autobuild/bootlin-s390x-z13-glibc.config,x86_64
 support/config-fragments/autobuild/bootlin-sh4-uclibc.config,x86_64
 support/config-fragments/autobuild/bootlin-sparc-uclibc.config,x86_64
 support/config-fragments/autobuild/bootlin-sparc64-glibc.config,x86_64
+support/config-fragments/autobuild/bootlin-x86-i686-musl.config,x86_64
 support/config-fragments/autobuild/bootlin-x86-64-glibc.config,x86_64
 support/config-fragments/autobuild/bootlin-x86-64-uclibc.config,x86_64
 support/config-fragments/autobuild/bootlin-xtensa-uclibc.config,x86_64
@@ -50,7 +51,6 @@ support/config-fragments/autobuild/br-arm-internal-full.config,any
 support/config-fragments/autobuild/br-arm-internal-glibc.config,any
 support/config-fragments/autobuild/br-arm-internal-musl.config,any
 support/config-fragments/autobuild/br-i386-pentium4-full.config,x86_64
-support/config-fragments/autobuild/br-i386-pentium-mmx-musl.config,x86_64
 support/config-fragments/autobuild/br-microblazeel-full-internal.config,any
 support/config-fragments/autobuild/br-mips64-n64-full.config,x86_64
 support/config-fragments/autobuild/br-mips64r6-el-hf-glibc.config,x86_64