diff --git a/mdbx.h b/mdbx.h
index b10ab212..7ab171a1 100644
--- a/mdbx.h
+++ b/mdbx.h
@@ -1020,12 +1020,15 @@ LIBMDBX_API const char *mdbx_dump_val(const MDBX_val *key, char *const buf,
                                       const size_t bufsize);
 
 /** \brief Panics with message and causes abnormal process termination. */
-LIBMDBX_API void mdbx_panic(const char *fmt, ...) MDBX_PRINTF_ARGS(1, 2);
+MDBX_NORETURN LIBMDBX_API void mdbx_panic(const char *fmt, ...)
+    MDBX_PRINTF_ARGS(1, 2);
 
 /** \brief Panics with asserton failed message and causes abnormal process
  * termination. */
-LIBMDBX_API void mdbx_assert_fail(const MDBX_env *env, const char *msg,
-                                  const char *func, unsigned line);
+MDBX_NORETURN LIBMDBX_API void mdbx_assert_fail(const MDBX_env *env,
+                                                const char *msg,
+                                                const char *func,
+                                                unsigned line);
 /** end of c_debug @} */
 
 /** \brief Environment flags
diff --git a/src/osal.c b/src/osal.c
index 2e0bb56a..34aeb62d 100644
--- a/src/osal.c
+++ b/src/osal.c
@@ -247,13 +247,15 @@ __cold void mdbx_assert_fail(const MDBX_env *env, const char *msg,
 #endif
   }
 
+  while (1) {
 #if defined(_WIN32) || defined(_WIN64)
-  if (IsDebuggerPresent())
-    DebugBreak();
-  FatalExit(ERROR_UNHANDLED_ERROR);
+    if (IsDebuggerPresent())
+      DebugBreak();
+    FatalExit(ERROR_UNHANDLED_ERROR);
 #else
-  abort();
+    abort();
 #endif
+  }
 }
 
 __cold void mdbx_panic(const char *fmt, ...) {
@@ -267,16 +269,18 @@ __cold void mdbx_panic(const char *fmt, ...) {
       (num < 1 || !message) ? "<troubles with panic-message preparation>"
                             : message;
 
+  while (1) {
 #if defined(_WIN32) || defined(_WIN64)
-  OutputDebugStringA("\r\nMDBX-PANIC: ");
-  OutputDebugStringA(const_message);
-  if (IsDebuggerPresent())
-    DebugBreak();
-  FatalExit(ERROR_UNHANDLED_ERROR);
+    OutputDebugStringA("\r\nMDBX-PANIC: ");
+    OutputDebugStringA(const_message);
+    if (IsDebuggerPresent())
+      DebugBreak();
+    FatalExit(ERROR_UNHANDLED_ERROR);
 #else
-  __assert_fail(const_message, "mdbx", 0, "panic");
-  abort();
+    __assert_fail(const_message, "mdbx", 0, "panic");
+    abort();
 #endif
+  }
 }
 
 /*----------------------------------------------------------------------------*/