diff --git a/src/plot.cpp b/src/plot.cpp
index c2911f872..f7d1224f2 100644
--- a/src/plot.cpp
+++ b/src/plot.cpp
@@ -1197,11 +1197,15 @@ void ProjectionPlot::create_output() const
 
     int vert = omp_get_thread_num();
     for (int iter = 0; iter <= pixels_[1] / n_threads; iter++) {
-      if (vert < pixels_[1]) {
 
-        // Save bottom line of current work chunk to compare against later
-        if (tid == n_threads - 1)
-          old_segments = this_line_segments[n_threads - 1];
+      // Save bottom line of current work chunk to compare against later
+      // I used to have this inside the below if block, but it causes a
+      // spurious line to be drawn at the bottom of the image. Not sure
+      // why, but moving it here fixes things.
+      if (tid == n_threads - 1)
+        old_segments = this_line_segments[n_threads - 1];
+
+      if (vert < pixels_[1]) {
 
         for (int horiz = 0; horiz < pixels_[0]; ++horiz) {
 
diff --git a/tests/regression_tests/plot_projections/results_true.dat b/tests/regression_tests/plot_projections/results_true.dat
index 638981dc7..7f41f6a40 100644
--- a/tests/regression_tests/plot_projections/results_true.dat
+++ b/tests/regression_tests/plot_projections/results_true.dat
@@ -1 +1 @@
-96690b9e545d24b4e922aa30bffdd09863315e4a10301a5402c1b9f196a5ad67a1c8ac00231a1eeadb5d9c4f87cccd13bd86105765b002572acc4a33a32b070f
\ No newline at end of file
+186d646c4959755bf809d35c9f33a931fbd5195145131ae6764955bf276d44acf24970dfff76001106b93a7ce239d67d569440136b13073082c8ee23419d721e
\ No newline at end of file
diff --git a/tests/regression_tests/plot_projections/test.py b/tests/regression_tests/plot_projections/test.py
index 972e0e0d7..c390a06ab 100644
--- a/tests/regression_tests/plot_projections/test.py
+++ b/tests/regression_tests/plot_projections/test.py
@@ -56,5 +56,5 @@ class PlotTestHarness(TestHarness):
 
 
 def test_plot():
-    harness = PlotTestHarness(('plot_1.png', 'example1.png', 'example3.png', 'orthographic_example1.png'))
+    harness = PlotTestHarness(('plot_1.png', 'example1.png', 'example2.png', 'example3.png', 'orthographic_example1.png'))
     harness.main()