diff --git a/ggml/src/ggml-metal.m b/ggml/src/ggml-metal.m
index 9fc08ab3aa5cc..aad189430ab0b 100644
--- a/ggml/src/ggml-metal.m
+++ b/ggml/src/ggml-metal.m
@@ -310,7 +310,7 @@ static void ggml_metal_log(enum ggml_log_level level, const char * format, ...){
     GGML_METAL_LOG_INFO("%s: picking default device: %s\n", __func__, [[device name] UTF8String]);
 
     // Configure context
-    struct ggml_backend_metal_context * ctx = malloc(sizeof(struct ggml_backend_metal_context));
+    struct ggml_backend_metal_context * ctx = calloc(1, sizeof(struct ggml_backend_metal_context));
     ctx->device = device;
     ctx->n_cb   = MIN(n_cb, GGML_METAL_MAX_BUFFERS);
     ctx->queue  = [ctx->device newCommandQueue];