diff --git a/src/vector.c b/src/vector.c
index 0ced82b..d2312e0 100644
--- a/src/vector.c
+++ b/src/vector.c
@@ -916,8 +916,8 @@ vector_concat(PG_FUNCTION_ARGS)
 	Vector	   *b = PG_GETARG_VECTOR_P(1);
 	Vector	   *result;
 	int			dim = a->dim + b->dim;
-	int     dim_a = a->dim;
-	int     dim_b = b->dim;
+	int			dim_a = a->dim;
+	int			dim_b = b->dim;
 
 	CheckDim(dim);
 	result = InitVector(dim);