diff --git a/src/concrete_blocks.jl b/src/concrete_blocks.jl
index d805d5aa8a2478100b07073c2d86deb1681433c5..fa0559c4521b5ab94f4e4fdd8156e492b6014c00 100644
--- a/src/concrete_blocks.jl
+++ b/src/concrete_blocks.jl
@@ -1,5 +1,5 @@
 module ConcreteBlocks
-import JuMP: has_values, optimize!, model
+import JuMP: has_values, optimize!
 import ..BuildingBlocks: BuildingBlock, BuildingBlockPlaceholder, properties, duration
 import ..SequenceBuilders: SequenceBuilder, to_block, AbstractSequence