diff --git a/docker/main/rootfs/etc/s6-overlay/s6-rc.d/nginx/run b/docker/main/rootfs/etc/s6-overlay/s6-rc.d/nginx/run
index 33c052f72..a6436abd4 100755
--- a/docker/main/rootfs/etc/s6-overlay/s6-rc.d/nginx/run
+++ b/docker/main/rootfs/etc/s6-overlay/s6-rc.d/nginx/run
@@ -44,7 +44,7 @@ function get_cpus() {
             cpus=1
         fi
     else
-        cpus=$(grep -c processor /proc/cpuinfo)
+        cpus=$(grep -c ^processor /proc/cpuinfo)
     fi
 
     printf '%s' "$cpus"