diff --git a/src/main/java/org/veupathdb/service/eda/ds/plugin/correlation/AbstractCorrelationBipartiteNetwork.java b/src/main/java/org/veupathdb/service/eda/ds/plugin/correlation/AbstractCorrelationBipartiteNetwork.java
index a90d2908..a2d67ff5 100644
--- a/src/main/java/org/veupathdb/service/eda/ds/plugin/correlation/AbstractCorrelationBipartiteNetwork.java
+++ b/src/main/java/org/veupathdb/service/eda/ds/plugin/correlation/AbstractCorrelationBipartiteNetwork.java
@@ -67,9 +67,10 @@ protected void writeResults(OutputStream out, Map<String, InputStream> dataStrea
     // each node.
     stats.getStatistics().forEach((correlationRow) -> {
       
-      // Skip rows that have no correlation coefficient or a correlation coef that is too small. Filtering here prevents us
+      // Skip rows that have no correlation coefficient, a NaN correlation coef, or a correlation coef that is too small. Filtering here prevents us
       // from showing nodes with no links.
       if (correlationRow.getCorrelationCoef() == null) return;
+      if (Float.isNaN(Float.parseFloat(correlationRow.getCorrelationCoef()))) return;
       if (Math.abs(Float.parseFloat(correlationRow.getCorrelationCoef())) < correlationCoefThreshold.floatValue()) return;
       if (correlationRow.getPValue() != null) {
         if (Float.parseFloat(correlationRow.getPValue()) > pValueThreshold.floatValue()) return;