diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java
index 957919b18..b14d3be06 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/TerrainEditorTopComponent.java
@@ -1394,7 +1394,7 @@ public final class TerrainEditorTopComponent extends TopComponent implements Sce
                     if (tex != null) {
                         String selected = tex.getKey().getName();
 
-                        if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+                        if (selected.toLowerCase().endsWith(".dds")) {
                             if (ddsPreview == null) {
                                 ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                             }
@@ -1431,7 +1431,7 @@ public final class TerrainEditorTopComponent extends TopComponent implements Sce
                             if (editor.getValue() != null) {
                                 String selected = tex.getKey().getName();
 
-                                if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+                                if (selected.toLowerCase().endsWith(".dds")) {
                                     if (ddsPreview == null) {
                                         ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                                     }
diff --git a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/sky/SkyboxVisualPanel2.java b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/sky/SkyboxVisualPanel2.java
index 7dfa8deed..242dce20e 100644
--- a/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/sky/SkyboxVisualPanel2.java
+++ b/sdk/jme3-terrain-editor/src/com/jme3/gde/terraineditor/sky/SkyboxVisualPanel2.java
@@ -425,7 +425,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorSouth.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }
@@ -445,7 +445,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorNorth.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }
@@ -465,7 +465,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorEast.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }
@@ -485,7 +485,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorWest.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }
@@ -505,7 +505,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorTop.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }
@@ -525,7 +525,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorBottom.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }
@@ -545,7 +545,7 @@ public final class SkyboxVisualPanel2 extends JPanel {
             Texture tex = (Texture) editorSingle.getValue();
             String selected = tex.getKey().getName();
 
-            if (selected.endsWith(".dds") || selected.endsWith(".DDS")) {
+            if (selected.toLowerCase().endsWith(".dds")) {
                 if (ddsPreview == null) {
                     ddsPreview = new DDSPreview((ProjectAssetManager) SceneApplication.getApplication().getAssetManager());
                 }