diff --git a/subprojects/packagefiles/cfitsio/meson.build b/subprojects/packagefiles/cfitsio/meson.build
index 685afe630..85c5bcde2 100644
--- a/subprojects/packagefiles/cfitsio/meson.build
+++ b/subprojects/packagefiles/cfitsio/meson.build
@@ -202,8 +202,9 @@ libcfitsio = library(
   'cfitsio',
   libcfitsio_SOURCES,
   dependencies: deps,
-  # version: meson.project_version(),
-  # soversion: SOVERSION,
+  version: meson.project_version(),
+  soversion: SOVERSION,
+  c_args: '-Dcfitsio_EXPORTS',
   install: true,
 )
 message('libcfitsio: '+libcfitsio.name()+' '+libcfitsio.full_path())