diff --git a/src/swe-glib.c b/src/swe-glib.c
index cf167f1..fe109f1 100644
--- a/src/swe-glib.c
+++ b/src/swe-glib.c
@@ -119,6 +119,11 @@ gswe_init(void)
     GsweAspectInfo *aspect_info;
     GsweAntiscionAxisInfo *antiscion_axis_info;
 
+    /* Before 2.34, g_type_init() must have been called. Let's do it! */
+#if !GLIB_CHECK_VERSION(2, 36, 0)
+    g_type_init();
+#endif
+
     if (gswe_initialized) {
         return;
     }