1 files changed, 1 insertions, 1 deletions

diff --git a/meta/conf/external_toolchain.conf b/meta/conf/external_toolchain.conf
index b5bf220dc5..8f544183d0 100644
--- a/meta/conf/external_toolchain.conf
+++ b/meta/conf/external_toolchain.conf
@@ -15,7 +15,7 @@ PREFERRED_PROVIDER_virtual/libiconv = "external-poky-toolchain"
 PREFERRED_PROVIDER_glibc-thread-db = "external-poky-toolchain"
 PREFERRED_PROVIDER_virtual/linux-libc-headers = "external-poky-toolchain"
 
-TARGET_CPPFLAGS_append = " -I${EXTERNAL_TOOLCHAIN}/${TARGET_SYS}/include "
+TARGET_CPPFLAGS_prepend = " -I${EXTERNAL_TOOLCHAIN}/${TARGET_SYS}/include "
 TARGET_LDFLAGS_prepend = " -L${EXTERNAL_TOOLCHAIN}/${TARGET_SYS}/lib -Wl,-rpath-link,${EXTERNAL_TOOLCHAIN}/${TARGET_SYS}/lib "