diff --git a/src/server/service/table_service.cpp b/src/server/service/table_service.cpp
index 52f204ea2..cf0213b01 100644
--- a/src/server/service/table_service.cpp
+++ b/src/server/service/table_service.cpp
@@ -61,7 +61,7 @@ std::string getWrongOptionHelp(const engine::api::TableParameters &parameters)
         help = "fallback_speed must be > 0";
     }
 
-    if (parameters.scale_factor < 0)
+    if (parameters.scale_factor <= 0)
     {
         help = "scale_factor must be > 0";
     }