diff --git a/theme.py b/theme.py
index ac2b2c4f9..aa6c095e8 100644
--- a/theme.py
+++ b/theme.py
@@ -1131,7 +1131,7 @@ def setThemeIndymediaModern(baseDir: str):
 def setThemeSolidaric(baseDir: str):
     name = 'solidaric'
     themeParams = {
-        "post-separator-width": "96%",
+        "post-separator-width": "96.5%",
         "post-separator-height": "40px",
         "border-width-header": "0",
         "post-line-margin": "0 5%",