diff --git a/com.oracle.truffle.r.native/fficall/src/jni/Rembedded.c b/com.oracle.truffle.r.native/fficall/src/jni/Rembedded.c
index af38cfcc846d04ece15ebe0120913ee60a101c23..9cc1084873df36694d21b388221de6315f029f61 100644
--- a/com.oracle.truffle.r.native/fficall/src/jni/Rembedded.c
+++ b/com.oracle.truffle.r.native/fficall/src/jni/Rembedded.c
@@ -601,16 +601,16 @@ CTXT R_getGlobalFunctionContext() {
 	JNIEnv *jniEnv = getEnv();
 	jmethodID methodID = checkGetMethodID(jniEnv, CallRFFIHelperClass, "R_getGlobalFunctionContext", "()Ljava/lang/Object;", 1);
     CTXT result = (*jniEnv)->CallStaticObjectMethod(jniEnv, CallRFFIHelperClass, methodID);
-    result = checkRef(jniEnv, result);
-    return result == R_NilValue ? NULL : addGlobalRef(jniEnv, result, 0);
+    SEXP new_result = checkRef(jniEnv, result);
+    return new_result == R_NilValue ? NULL : addGlobalRef(jniEnv, result, 0);
 }
 
 CTXT R_getParentFunctionContext(CTXT c) {
 	JNIEnv *jniEnv = getEnv();
 	jmethodID methodID = checkGetMethodID(jniEnv, CallRFFIHelperClass, "R_getParentFunctionContext", "(Ljava/lang/Object;)Ljava/lang/Object;", 1);
     CTXT result = (*jniEnv)->CallStaticObjectMethod(jniEnv, CallRFFIHelperClass, methodID, c);
-    result = checkRef(jniEnv, result);
-    return result == R_NilValue ? NULL : addGlobalRef(jniEnv, result, 0);
+    SEXP new_result = checkRef(jniEnv, result);
+    return new_result == R_NilValue ? NULL : addGlobalRef(jniEnv, result, 0);
 }
 
 SEXP R_getContextEnv(CTXT context) {