diff --git a/support/scripts/gen-bootlin-toolchains b/support/scripts/gen-bootlin-toolchains
index bd1beec995..df16cff5c4 100755
--- a/support/scripts/gen-bootlin-toolchains
+++ b/support/scripts/gen-bootlin-toolchains
@@ -118,10 +118,6 @@ arches = {
         'conditions': ['BR2_mips64el', 'BR2_mips_64r6', 'BR2_MIPS_NABI32', '!BR2_MIPS_SOFT_FLOAT'],
         'prefix': 'mips64el',
     },
-    'nios2': {
-        'conditions': ['BR2_nios2'],
-        'prefix': 'nios2',
-    },
     'openrisc': {
         'conditions': ['BR2_or1k'],
         'prefix': 'or1k',