diff --git a/srcpkgs/exo/template b/srcpkgs/exo/template
index bbcf16d93ba..137b849598a 100644
--- a/srcpkgs/exo/template
+++ b/srcpkgs/exo/template
@@ -17,8 +17,6 @@ checksum=521581481128af93e815f9690020998181f947ac9e9c2b232b1f144d76b1b35c
 
 pre_configure() {
 	if [ "$CROSS_BUILD" ]; then
-		export ac_cv_strftime_extensions=yes
-
 		# Disable tests:
 		sed -i 's/^\([[:blank:]]*po\).*$/\1/;/^[[:blank:]]*tests$/d' Makefile.am
 	fi