diff --git a/ypsu.cpp b/ypsu.cpp
index 8a72d70..abc6112 100644
--- a/ypsu.cpp
+++ b/ypsu.cpp
@@ -219,9 +219,7 @@ static inline void mormord_sort_impl(uint32_t *a, int n, int j) noexcept {
 		uint32_t from = real_radics[i];
 		/* non-inclusive */
 		uint32_t to = real_radics[i + 1];
-		if(from < to) { // TODO: check if this "if" is needed!
-			mormord_sort_impl(&a[from], (to - (from)), j - 1);
-		}
+		mormord_sort_impl(&a[from], (to - (from)), j - 1);
 	}
 }
 static inline void mormord_sort(uint32_t *a, int n) noexcept {