diff --git a/spec/02-integration/18-hybrid_rpc/01-rpc_spec.lua b/spec/02-integration/18-hybrid_rpc/01-rpc_spec.lua
index 184fba99741d..0acd509fc0a7 100644
--- a/spec/02-integration/18-hybrid_rpc/01-rpc_spec.lua
+++ b/spec/02-integration/18-hybrid_rpc/01-rpc_spec.lua
@@ -2,7 +2,7 @@ local helpers = require "spec.helpers"
 local cjson = require("cjson.safe")
 
 -- we need incremental sync to verify rpc
-for _, inc_sync in ipairs { "on"  } do
+for _, inc_sync in ipairs { "on" } do
 for _, strategy in helpers.each_strategy() do
   describe("Hybrid Mode RPC #" .. strategy .. " inc_sync=" .. inc_sync, function()
 
diff --git a/spec/02-integration/18-hybrid_rpc/04-concentrator_spec.lua b/spec/02-integration/18-hybrid_rpc/04-concentrator_spec.lua
index 1f681ebe633e..763d7a383474 100644
--- a/spec/02-integration/18-hybrid_rpc/04-concentrator_spec.lua
+++ b/spec/02-integration/18-hybrid_rpc/04-concentrator_spec.lua
@@ -29,7 +29,7 @@ end
 
 
 -- we need incremental sync to verify rpc
-for _, inc_sync in ipairs { "on"  } do
+for _, inc_sync in ipairs { "on" } do
 for _, strategy in helpers.each_strategy() do
   describe("Hybrid Mode RPC over DB concentrator #" .. strategy .. " inc_sync=" .. inc_sync, function()