diff --git a/mkdocs_glightbox/plugin.py b/mkdocs_glightbox/plugin.py
index 7284c6d..3daaed7 100644
--- a/mkdocs_glightbox/plugin.py
+++ b/mkdocs_glightbox/plugin.py
@@ -144,7 +144,7 @@ def repl_html(match):
             return html
 
         markdown = re.sub("!\\[[^\\]]*\\]\\([^)]*\\)", repl_md, markdown)
-        markdown = re.sub("<img.*>", repl_html, markdown)
+        markdown = re.sub("<img\\s+[^>]*>", repl_html, markdown)
 
         return markdown