diff --git a/java/impl/org/linphone/core/LinphoneCoreImpl.java b/java/impl/org/linphone/core/LinphoneCoreImpl.java
index 61a44582e..75bfd5395 100644
--- a/java/impl/org/linphone/core/LinphoneCoreImpl.java
+++ b/java/impl/org/linphone/core/LinphoneCoreImpl.java
@@ -278,7 +278,9 @@ class LinphoneCoreImpl implements LinphoneCore {
 	}
 	public synchronized void removeProxyConfig(LinphoneProxyConfig proxyCfg) {
 		isValid();
-		removeProxyConfig(nativePtr, ((LinphoneProxyConfigImpl) proxyCfg).nativePtr);
+		if (proxyCfg != null) {
+			removeProxyConfig(nativePtr, ((LinphoneProxyConfigImpl) proxyCfg).nativePtr);
+		}
 	}
 	public synchronized void clearAuthInfos() {
 		isValid();