diff --git a/src/sparsevec.c b/src/sparsevec.c
index a288297..44a843d 100644
--- a/src/sparsevec.c
+++ b/src/sparsevec.c
@@ -804,7 +804,6 @@ sparsevec_subvector(PG_FUNCTION_ARGS)
 
 	dim = end - start;
 	CheckDim(dim);
-	startIndex = dim;
 
 	for (startIndex = 0; startIndex < a->nnz; startIndex++)
 	{