diff --git a/src/main/java/com/actelion/research/chem/descriptor/flexophore/FlexophoreAtomContributionColors.java b/src/main/java/com/actelion/research/chem/descriptor/flexophore/FlexophoreAtomContributionColors.java
index 6575ffeb..f061a153 100644
--- a/src/main/java/com/actelion/research/chem/descriptor/flexophore/FlexophoreAtomContributionColors.java
+++ b/src/main/java/com/actelion/research/chem/descriptor/flexophore/FlexophoreAtomContributionColors.java
@@ -117,7 +117,7 @@ public float[] getRefRadius() {
 		return mRefRadius;
 	}
 
-	private int[] createDiverseColorList(int colorCount) {
+	public static int[] createDiverseColorList(int colorCount) {
 		if (colorCount <= cDiverseColor.length)
 			return cDiverseColor;