diff --git a/configure.ac b/configure.ac
index 91a49ac0da9527c04825f0a10dea2303133de711..bb7364e9f24f9ec5bfcdc583404ecefa9dfb00ee 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1678,7 +1678,6 @@ AS_IF([test "${enable_altivec}" = "yes"], [
   ])
   VLC_RESTORE_FLAGS
   AS_IF([test "${ac_cv_c_altivec}" != "no"], [
-    CPPFLAGS="${CPPFLAGS} ${ac_cv_c_altivec}"
     have_altivec="yes"
   ])
   AC_CHECK_HEADERS([altivec.h])