diff --git a/src/mma7660/javaupm_mma7660.i b/src/mma7660/javaupm_mma7660.i
index a20902df..47913a63 100644
--- a/src/mma7660/javaupm_mma7660.i
+++ b/src/mma7660/javaupm_mma7660.i
@@ -26,6 +26,7 @@
 %typemap(out) float *getAcceleration {
     $result = JCALL1(NewFloatArray, jenv, 3);
     JCALL4(SetFloatArrayRegion, jenv, $result, 0, 3, $1);
+    delete [] $1;
 }