diff --git a/src/spatialjoin/Sweeper.cpp b/src/spatialjoin/Sweeper.cpp
index 1515eb6..1e223e0 100644
--- a/src/spatialjoin/Sweeper.cpp
+++ b/src/spatialjoin/Sweeper.cpp
@@ -337,7 +337,7 @@ std::pair<bool, bool> Sweeper::check(const Area* a, const Area* b,
     // at least one box is fully contained, so we intersect
     // but the number of fully and partially contained boxed is smaller
     // than the number of boxes of A, so we cannot possible by contained
-    if (r.first + r.second < a->boxIds.front().first && r.second > 0) {
+    if (r.first + r.second < a->boxIds.front().first && r.first > 0) {
       return {1, 0};
     }
   }
@@ -368,7 +368,7 @@ std::pair<bool, bool> Sweeper::check(const Line* a, const Area* b,
     // at least one box is fully contained, so we intersect
     // but the number of fully and partially contained boxed is smaller
     // than the number of boxes of A, so we cannot possible by contained
-    if (r.first + r.second < a->boxIds.front().first && r.second > 0) {
+    if (r.first + r.second < a->boxIds.front().first && r.first > 0) {
       return {1, 0};
     }
   }
diff --git a/src/util b/src/util
index bcbe6d8..40c595c 160000
--- a/src/util
+++ b/src/util
@@ -1 +1 @@
-Subproject commit bcbe6d8d9e37d8bd67b28d0a8c9d6c8104bc0301
+Subproject commit 40c595cd009a007ff9769479b06c17bda2f1b2d4