diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java b/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java
index ed790678f24..4d261cac101 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java	
@@ -86,6 +86,7 @@ public class OS extends C {
 			try {
 				Library.loadLibrary("swt-pi4");
 			} catch (Throwable e) {
+				System.err.println(e.getMessage());
 				System.err.println("SWT OS.java Error: Failed to load swt-pi4, loading swt-pi3 as fallback.");
 				Library.loadLibrary("swt-pi3");
 			}
@@ -93,6 +94,7 @@ public class OS extends C {
 			try {
 				Library.loadLibrary("swt-pi3");
 			} catch (Throwable e) {
+				System.err.println(e.getMessage());
 				System.err.println("SWT OS.java Error: Failed to load swt-pi3, loading swt-pi4 as fallback.");
 				Library.loadLibrary("swt-pi4");
 			}