diff --git a/src/scripts/run_certbot.sh b/src/scripts/run_certbot.sh
index bb10b8c..5f6241a 100644
--- a/src/scripts/run_certbot.sh
+++ b/src/scripts/run_certbot.sh
@@ -169,5 +169,11 @@ done
 # did indeed get certificates for.
 auto_enable_configs
 
+# Make sure the Nginx configs are valid.
+if ! nginx -t; then
+  error "Nginx configuration is invalid, skipped reloading. Check the logs for details."
+  exit 0
+fi
+
 # Finally, tell Nginx to reload the configs.
 nginx -s reload
diff --git a/src/scripts/run_local_ca.sh b/src/scripts/run_local_ca.sh
index 55bd0ef..d903454 100644
--- a/src/scripts/run_local_ca.sh
+++ b/src/scripts/run_local_ca.sh
@@ -247,5 +247,11 @@ done
 # did indeed succeed with.
 auto_enable_configs
 
+# Make sure the Nginx configs are valid.
+if ! nginx -t; then
+  error "Nginx configuration is invalid, skipped reloading. Check the logs for details."
+  exit 0
+fi
+
 # Finally, tell Nginx to reload the configs.
 nginx -s reload