diff --git a/easybuild/easyconfigs/i/InterOp/InterOp-1.3.2-foss-2023a.eb b/easybuild/easyconfigs/i/InterOp/InterOp-1.3.2-foss-2023a.eb
index cbe68180da2..55041249666 100644
--- a/easybuild/easyconfigs/i/InterOp/InterOp-1.3.2-foss-2023a.eb
+++ b/easybuild/easyconfigs/i/InterOp/InterOp-1.3.2-foss-2023a.eb
@@ -26,14 +26,13 @@ dependencies = [
     ('dotNET-Core', '8.0', '', SYSTEM),
 ]
 
+# change `HOME` to fix NuGet error `Could not find a part of the path`
 prebuildopts = 'export NUGET_HTTP_CACHE_PATH=%(builddir)s/nuget-cache && '
 prebuildopts += 'export NUGET_PLUGINS_CACHE_PATH=%(builddir)s/plugins-cach && '
 prebuildopts += 'export NUGET_PACKAGES=%(builddir)s/packages && '
-
-# change `HOME` to fix NuGet error `Could not find a part of the path`
 local_change_home = 'export HOME=%(builddir)s/home && '
 
-prebuildopts = local_change_home
+prebuildopts += local_change_home
 
 buildopts = " && make python_lib"