diff --git a/vtm-android/src/org/oscim/android/gl/AndroidGL.java b/vtm-android/src/org/oscim/android/gl/AndroidGL.java
index 16fc5f8a..da6c0329 100644
--- a/vtm-android/src/org/oscim/android/gl/AndroidGL.java
+++ b/vtm-android/src/org/oscim/android/gl/AndroidGL.java
@@ -139,8 +139,8 @@ public class AndroidGL implements GL20 {
 	}
 
 	@Override
-	public void glDrawElements(int mode, int count, int type, int indices) {
-		GLES20.glDrawElements(mode, count, type, indices);
+	public void glDrawElements(int mode, int count, int type, int offset) {
+		GLES20.glDrawElements(mode, count, type, offset);
 	}
 
 	@Override
diff --git a/vtm/src/org/oscim/backend/GL20.java b/vtm/src/org/oscim/backend/GL20.java
index e04632d4..283eb253 100644
--- a/vtm/src/org/oscim/backend/GL20.java
+++ b/vtm/src/org/oscim/backend/GL20.java
@@ -395,7 +395,7 @@ public interface GL20 {
 
 	public void glDisableVertexAttribArray(int index);
 
-	public void glDrawElements(int mode, int count, int type, int indices);
+	public void glDrawElements(int mode, int count, int type, int offset);
 
 	public void glEnableVertexAttribArray(int index);
 
@@ -565,8 +565,11 @@ public interface GL20 {
 	public void glVertexAttribPointer(int indx, int size, int type, boolean normalized, int stride,
 	        Buffer ptr);
 
+	/**
+	 * 
+	 */
 	public void glVertexAttribPointer(int indx, int size, int type, boolean normalized, int stride,
-	        int ptr);
+	        int offset);
 
 	//------------------------