diff --git a/src/com/xilinx/rapidwright/util/ReportRouteStatusResult.java b/src/com/xilinx/rapidwright/util/ReportRouteStatusResult.java
index 5cf5de7ef..a0de23aa7 100644
--- a/src/com/xilinx/rapidwright/util/ReportRouteStatusResult.java
+++ b/src/com/xilinx/rapidwright/util/ReportRouteStatusResult.java
@@ -72,7 +72,7 @@ public ReportRouteStatusResult(List<String> log) {
     }
 
     public boolean isFullyRouted() {
-        return unroutedNets == 0 && netsWithRoutingErrors == 0;
+        return logicalNets > 0 && unroutedNets == 0 && netsWithRoutingErrors == 0;
     }
 
 }
diff --git a/test/src/com/xilinx/rapidwright/util/TestVivadoTools.java b/test/src/com/xilinx/rapidwright/util/TestVivadoTools.java
index dc5c69dd1..cf5c9f6f8 100644
--- a/test/src/com/xilinx/rapidwright/util/TestVivadoTools.java
+++ b/test/src/com/xilinx/rapidwright/util/TestVivadoTools.java
@@ -34,6 +34,7 @@
 
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Arrays;
 import java.util.List;
 
 public class TestVivadoTools {
@@ -79,6 +80,16 @@ private void assertVivadoLogContains(List<String> log, String query) {
         Assertions.assertTrue(0 < result.size());
     }
 
+    @Test
+    public void testReportRouteStatusInvalid() {
+        ReportRouteStatusResult rrs = new ReportRouteStatusResult(Arrays.asList(
+                "foo",
+                "bar",
+                "blah"
+        ));
+        Assertions.assertFalse(rrs.isFullyRouted());
+    }
+
     @Test
     public void testWriteBitstream(@TempDir Path tempDir) {
         Assumptions.assumeTrue(FileTools.isVivadoOnPath());