diff --git a/source/vector.c b/source/vector.c
index 8628a3b..d51f267 100644
--- a/source/vector.c
+++ b/source/vector.c
@@ -7,7 +7,7 @@
 void vector_init(vector_t *        vector,
                  size_t      element_size,
                  size_t     element_count) {
-	assert(vector->element_size);
+	assert(element_size);
 
 	vector->data          = NULL;
 	vector->element_size  = element_size;