diff --git a/meta/classes-recipe/toolchain-scripts.bbclass b/meta/classes-recipe/toolchain-scripts.bbclass
index 3053cd0f1f..5874a48af8 100644
--- a/meta/classes-recipe/toolchain-scripts.bbclass
+++ b/meta/classes-recipe/toolchain-scripts.bbclass
@@ -9,7 +9,7 @@ inherit toolchain-scripts-base siteinfo kernel-arch meson-routines
 # We want to be able to change the value of MULTIMACH_TARGET_SYS, because it
 # doesn't always match our expectations... but we default to the stock value
 REAL_MULTIMACH_TARGET_SYS ?= "${MULTIMACH_TARGET_SYS}"
-TARGET_CC_ARCH:append:libc-musl = " -mmusl"
+TARGET_CC_ARCH:append:toolchain-gcc:libc-musl = " -mmusl"
 
 # default debug prefix map isn't valid in the SDK
 DEBUG_PREFIX_MAP = ""