diff --git a/fs/march/march_test.go b/fs/march/march_test.go
index eae1ea86a..0a0ec940b 100644
--- a/fs/march/march_test.go
+++ b/fs/march/march_test.go
@@ -207,9 +207,10 @@ func TestMarch(t *testing.T) {
 			err := mt.currentError()
 			require.NoError(t, err)
 
-			fstest.CompareItems(t, mt.srcOnly, srcOnly, test.dirSrcOnly, "srcOnly")
-			fstest.CompareItems(t, mt.dstOnly, dstOnly, test.dirDstOnly, "dstOnly")
-			fstest.CompareItems(t, mt.match, match, test.dirMatch, "match")
+			precision := fs.GetModifyWindow(r.Fremote, r.Flocal)
+			fstest.CompareItems(t, mt.srcOnly, srcOnly, test.dirSrcOnly, precision, "srcOnly")
+			fstest.CompareItems(t, mt.dstOnly, dstOnly, test.dirDstOnly, precision, "dstOnly")
+			fstest.CompareItems(t, mt.match, match, test.dirMatch, precision, "match")
 		})
 	}
 }
@@ -273,8 +274,9 @@ func TestMarchNoTraverse(t *testing.T) {
 			err := mt.currentError()
 			require.NoError(t, err)
 
-			fstest.CompareItems(t, mt.srcOnly, srcOnly, test.dirSrcOnly, "srcOnly")
-			fstest.CompareItems(t, mt.match, match, test.dirMatch, "match")
+			precision := fs.GetModifyWindow(r.Fremote, r.Flocal)
+			fstest.CompareItems(t, mt.srcOnly, srcOnly, test.dirSrcOnly, precision, "srcOnly")
+			fstest.CompareItems(t, mt.match, match, test.dirMatch, precision, "match")
 		})
 	}
 }
diff --git a/fstest/fstest.go b/fstest/fstest.go
index faf6a5134..9c4ae4c7d 100644
--- a/fstest/fstest.go
+++ b/fstest/fstest.go
@@ -348,10 +348,10 @@ func CheckItems(t *testing.T, f fs.Fs, items ...Item) {
 	CheckListingWithPrecision(t, f, items, nil, fs.GetModifyWindow(f))
 }
 
-// CompareItems compares a set of DirEntries to a slice of items and a lit of dirs
-func CompareItems(t *testing.T, entries fs.DirEntries, items []Item, expectedDirs []string, what string) {
+// CompareItems compares a set of DirEntries to a slice of items and a list of dirs
+// The modtimes are compared with the precision supplied
+func CompareItems(t *testing.T, entries fs.DirEntries, items []Item, expectedDirs []string, precision time.Duration, what string) {
 	is := NewItems(items)
-	precision, _ := time.ParseDuration("1s")
 	var objs []fs.Object
 	var dirs []fs.Directory
 	wantListing1, wantListing2 := makeListingFromItems(items)