diff --git a/synctex.c b/synctex.c
index 9a9c91f..e3cd1bb 100644
--- a/synctex.c
+++ b/synctex.c
@@ -11,15 +11,24 @@
 void
 synctex_edit(zathura_t* zathura, zathura_page_t* page, int x, int y)
 {
-  zathura_document_t* doc = zathura_page_get_document(page);
-  const char *filename = zathura_document_get_path(doc);
-  int pageIdx = zathura_page_get_index(page);
-
-  char *buffer = g_strdup_printf("%d:%d:%d:%s", pageIdx+1, x, y, filename);
-  if (buffer == NULL)
+  if (zathura == NULL || page == NULL) {
     return;
+  }
 
-  if (zathura->synctex.editor) {
+  zathura_document_t* document = zathura_page_get_document(page);
+  if (document == NULL) {
+    return;
+  }
+
+  const char *filename = zathura_document_get_path(document);
+  if (filename == NULL) {
+    return;
+  }
+
+  int page_idx = zathura_page_get_index(page);
+  char *buffer = g_strdup_printf("%d:%d:%d:%s", page_idx + 1, x, y, filename);
+
+  if (zathura->synctex.editor != NULL) {
     char* argv[] = {"synctex", "edit", "-o", buffer, "-x", zathura->synctex.editor, NULL};
     g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, NULL);
   } else {