diff --git a/runtime/include/vec.h b/runtime/include/vec.h
index 2ec3bc2..b1ac877 100644
--- a/runtime/include/vec.h
+++ b/runtime/include/vec.h
@@ -44,7 +44,7 @@
 	 */                                                                                                      \
 	static inline struct vec_##TYPE *vec_##TYPE##_alloc(size_t capacity)                                     \
 	{                                                                                                        \
-		struct vec_##TYPE *vec = (struct vec_##TYPE *)malloc(sizeof(struct vec_##TYPE));                 \
+		struct vec_##TYPE *vec = (struct vec_##TYPE *)calloc(1, sizeof(struct vec_##TYPE));              \
 		if (vec == NULL) return vec;                                                                     \
                                                                                                                  \
 		int rc = vec_##TYPE##_init(vec, capacity);                                                       \
diff --git a/runtime/include/wasm_table.h b/runtime/include/wasm_table.h
index d9be90b..a149966 100644
--- a/runtime/include/wasm_table.h
+++ b/runtime/include/wasm_table.h
@@ -38,8 +38,8 @@ wasm_table_init(struct sledge_abi__wasm_table *wasm_table, size_t capacity)
 static INLINE struct sledge_abi__wasm_table *
 wasm_table_alloc(size_t capacity)
 {
-	struct sledge_abi__wasm_table *wasm_table = (struct sledge_abi__wasm_table *)malloc(
-	  sizeof(struct sledge_abi__wasm_table));
+	struct sledge_abi__wasm_table *wasm_table = (struct sledge_abi__wasm_table *)
+	  calloc(1, sizeof(struct sledge_abi__wasm_table));
 	if (wasm_table == NULL) return NULL;
 
 	int rc = wasm_table_init(wasm_table, capacity);
diff --git a/runtime/src/global_request_scheduler_deque.c b/runtime/src/global_request_scheduler_deque.c
index d850ffd..4b0d133 100644
--- a/runtime/src/global_request_scheduler_deque.c
+++ b/runtime/src/global_request_scheduler_deque.c
@@ -52,7 +52,7 @@ void
 global_request_scheduler_deque_initialize()
 {
 	/* Allocate and Initialize the global deque */
-	global_request_scheduler_deque = (struct deque_sandbox *)malloc(sizeof(struct deque_sandbox));
+	global_request_scheduler_deque = (struct deque_sandbox *)calloc(1, sizeof(struct deque_sandbox));
 	assert(global_request_scheduler_deque);
 	/* Note: Below is a Macro */
 	deque_init_sandbox(global_request_scheduler_deque, GLOBAL_REQUEST_SCHEDULER_DEQUE_CAPACITY);
diff --git a/runtime/src/libc/wasi_impl_serverless.c b/runtime/src/libc/wasi_impl_serverless.c
index 2ab6c51..373c51e 100644
--- a/runtime/src/libc/wasi_impl_serverless.c
+++ b/runtime/src/libc/wasi_impl_serverless.c
@@ -31,7 +31,7 @@ wasi_context_init(wasi_options_t *options)
 	/* TODO: Add default types */
 	assert(options != NULL);
 
-	wasi_context_t *wasi_context = (wasi_context_t *)malloc(sizeof(wasi_context_t));
+	wasi_context_t *wasi_context = (wasi_context_t *)calloc(1, sizeof(wasi_context_t));
 
 	if (options->argc > 0) {
 		assert(options->argv != NULL);