diff --git a/G/GEOS/build_tarballs.jl b/G/GEOS/build_tarballs.jl
index 31b7b5f6a88..d8f8a268c96 100644
--- a/G/GEOS/build_tarballs.jl
+++ b/G/GEOS/build_tarballs.jl
@@ -35,7 +35,7 @@ make install
 
 # These are the platforms we will build for by default, unless further
 # platforms are passed in on the command line
-platforms = supported_platforms()
+platforms = expand_cxxstring_abis(supported_platforms())
 
 # The products that we will ensure are always built
 products = [