diff --git a/src/main/java/plugins/stef/roi/quantify/PathIntensityProfiler.java b/src/main/java/plugins/stef/roi/quantify/PathIntensityProfiler.java
index 5ba01d353eee178e4fbb1cc0389d421c68df069f..ff206a0b8091cd62e7a758911516843d1d0dd488 100644
--- a/src/main/java/plugins/stef/roi/quantify/PathIntensityProfiler.java
+++ b/src/main/java/plugins/stef/roi/quantify/PathIntensityProfiler.java
@@ -225,7 +225,7 @@ public class PathIntensityProfiler extends EzPlug implements Block, EzStoppable
         {
             // create a sheet for each ROI
             final IcySpreadSheet sh = new IcySpreadSheet(result.createSheet(
-                    roi.getName().replace(':', '_') + String.format(" - S%04d", Integer.valueOf(roiIndex))));
+                    String.format("S%04d - ", Integer.valueOf(roiIndex)) + roi.getName().replace(':', '_')));
 
             // write columns headers
             int indCol = 0;