diff --git a/config.py b/config.py
index 5c4eae1..499b047 100644
--- a/config.py
+++ b/config.py
@@ -45,10 +45,10 @@ class Config(ComboParser):
         # Validate thread counts (0 allowed for watchd to disable local testing)
         if self.watchd.threads < 0:
             errors.append('watchd.threads must be >= 0')
-        if self.ppf.threads < 1:
-            errors.append('ppf.threads must be >= 1')
-        if self.scraper.threads < 1:
-            errors.append('scraper.threads must be >= 1')
+        if self.ppf.threads < 0:
+            errors.append('ppf.threads must be >= 0')
+        if self.scraper.enabled and self.scraper.threads < 1:
+            errors.append('scraper.threads must be >= 1 when scraper is enabled')
 
         # Validate max_fail
         if self.watchd.max_fail < 1: