diff --git a/linux/libdriver/base/abi.c b/linux/libdriver/base/abi.c
index 78bd1d20..5d919b46 100644
--- a/linux/libdriver/base/abi.c
+++ b/linux/libdriver/base/abi.c
@@ -1,4 +1,3 @@
-#include <assert.h>
 #include <errno.h>
 #include <string.h>
 #include "abi.h"
@@ -144,7 +143,8 @@ int evm_abi_put_bytes_d(evm_buf_t *me, evm_buf_t *offset, size_t n, const void *
 
 uint32_t evm_abi_peek_funsel(evm_buf_t *me)
 {
-	assert(evm_buf_length(me) >= 4);
+	if (evm_buf_length(me) < 4)
+		return 0;
 	return EVM_ABI_FUNSEL(me->p[0], me->p[1], me->p[2], me->p[3]);
 }