diff --git a/meta-oniro-core/recipes-support/gmp/gmp_%.bbappend b/meta-oniro-core/recipes-support/gmp/gmp_%.bbappend
index 066b62be7930e2393cbbbebf71c62e8a0b326147..92b351b569a000f1da18bfea5b80d00ea1020e40 100644
--- a/meta-oniro-core/recipes-support/gmp/gmp_%.bbappend
+++ b/meta-oniro-core/recipes-support/gmp/gmp_%.bbappend
@@ -9,4 +9,4 @@
 # -Werror=format-nonliteral globally in OPTIMIZE_FOR=security mode
 # while keeping gmp building.
 
-TARGET_CFLAGS_remove = "-Werror=format-nonliteral"
+TARGET_CFLAGS:remove = "-Werror=format-nonliteral"