diff --git a/G/GDAL/build_tarballs.jl b/G/GDAL/build_tarballs.jl
index b34f72d16b3..7dce8ab1fb9 100644
--- a/G/GDAL/build_tarballs.jl
+++ b/G/GDAL/build_tarballs.jl
@@ -58,8 +58,7 @@ make -j${nproc}
 make install
 """
 
-platforms = supported_platforms()
-platforms = expand_cxxstring_abis(platforms)
+platforms = expand_cxxstring_abis(supported_platforms())
 
 # The products that we will ensure are always built
 products = [