diff --git a/src/SparseMatrixCOO.jl b/src/SparseMatrixCOO.jl
index 2c4d692..d3c3ebf 100644
--- a/src/SparseMatrixCOO.jl
+++ b/src/SparseMatrixCOO.jl
@@ -103,8 +103,8 @@ end
 findnz(coo::SparseMatrixCOO) = (coo.is, coo.js, coo.vs)
 isdense(::SparseMatrixCOO) = false
 
-function Base.setindex!(coo::SparseMatrixCOO{Tv,Ti}, v, i::Ti, j::Ti) where {Tv,Ti}
-    (1 <= i <= coo.m) && (1 <= j <= coo.n) || throw(BoundsError(coo, (i, j)))
+Base.@propagate_inbounds function Base.setindex!(coo::SparseMatrixCOO{Tv,Ti}, v, i::Ti, j::Ti) where {Tv,Ti}
+    @boundscheck (1 <= i <= coo.m) && (1 <= j <= coo.n) || throw(BoundsError(coo, (i, j)))
 
     push!(coo.is, i)
     push!(coo.js, j)