diff --git a/environments/opteesp/component.cmake b/environments/opteesp/component.cmake
index 86b1d19..72eef78 100644
--- a/environments/opteesp/component.cmake
+++ b/environments/opteesp/component.cmake
@@ -11,6 +11,7 @@
 
 target_sources(${TGT} PRIVATE
 	"${CMAKE_CURRENT_LIST_DIR}/optee_sp_header.c"
+	"${CMAKE_CURRENT_LIST_DIR}/sp_assert.c"
 	"${CMAKE_CURRENT_LIST_DIR}/sp_entry.c"
 	"${CMAKE_CURRENT_LIST_DIR}/sp_trace.c"
 )
diff --git a/environments/opteesp/sp_assert.c b/environments/opteesp/sp_assert.c
new file mode 100644
index 0000000..8f336e7
--- /dev/null
+++ b/environments/opteesp/sp_assert.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2021-2022, Arm Limited and Contributors. All rights reserved.
+ */
+
+#include "assert_fail_handler.h"
+#include "compiler.h"
+#include "trace.h"
+
+/*
+ * The generic trace function called on assert fail.
+ */
+void __noreturn assert_fail_handler(const char *file, int line,
+				    const char *func, const char *failedexpr)
+{
+#if TRACE_LEVEL >= TRACE_LEVEL_ERROR
+	trace_printf(func, line, TRACE_LEVEL_ERROR, "assertion %s failed", failedexpr);
+#endif /* TRACE_LEVEL */
+
+	while (1)
+		;
+}