diff --git a/PHI-CL/data/b/gm-vp.lua b/PHI-CL/data/b/gm-vp.lua
index d85e11b..710128f 100644
--- a/PHI-CL/data/b/gm-vp.lua
+++ b/PHI-CL/data/b/gm-vp.lua
@@ -145,7 +145,7 @@ end
 table.insert(data.raw.technology['concrete-productivity'].prerequisites, 'landfill')
 table.insert(data.raw.technology['solar-energy-productivity'].prerequisites, 'electric-energy-accumulators')
 table.insert(data.raw.technology['sulfur-processing-productivity'].prerequisites, 'cliff-explosives')
-data.raw.technology['concrete-productivity'].effects = {{type = 'change-recipe-productivity', recipe = 'concrete-from-molten-iron', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'refined-concrete', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'landfill', change = 0.05}}
+data.raw.technology['concrete-productivity'].effects = {{type = 'change-recipe-productivity', recipe = 'concrete', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'concrete-from-molten-iron', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'refined-concrete', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'landfill', change = 0.05}}
 data.raw.technology['engine-productivity'].effects = {{type = 'change-recipe-productivity', recipe = 'engine-unit', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'electric-engine-unit', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'flying-robot-frame', change = 0.05}}
 data.raw.technology['oil-processing-productivity'].prerequisites = {'cryogenic-plant'}
 data.raw.technology['oil-processing-productivity'].effects = {{type = 'change-recipe-productivity', recipe = 'basic-oil-processing', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'advanced-oil-processing', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'coal-liquefaction', change = 0.05}, {type = 'change-recipe-productivity', recipe = 'lubricant', change = 0.05}}