diff --git a/src/elements/core.c b/src/elements/core.c
index 04f2f085..d1a6cac3 100644
--- a/src/elements/core.c
+++ b/src/elements/core.c
@@ -17891,7 +17891,12 @@ uint64_t mdbx_key_from_jsonInteger(const int64_t json_integer) {
     const uint64_t key = biased_zero +
                          (exponent << IEEE754_DOUBLE_MANTISSA_SIZE) +
                          (mantissa - IEEE754_DOUBLE_IMPLICIT_LEAD);
+#if !defined(_MSC_VER) ||                                                      \
+    defined(                                                                   \
+        _DEBUG) /* Workaround for MSVC error LNK2019: unresolved external      \
+                   symbol __except1 referenced in function __ftol3_except */
     assert(key == mdbx_key_from_double((double)json_integer));
+#endif /* Workaround for MSVC */
     return key;
   }
 
@@ -17913,7 +17918,12 @@ uint64_t mdbx_key_from_jsonInteger(const int64_t json_integer) {
     const uint64_t key = biased_zero -
                          (exponent << IEEE754_DOUBLE_MANTISSA_SIZE) -
                          (mantissa - IEEE754_DOUBLE_IMPLICIT_LEAD);
+#if !defined(_MSC_VER) ||                                                      \
+    defined(                                                                   \
+        _DEBUG) /* Workaround for MSVC error LNK2019: unresolved external      \
+                   symbol __except1 referenced in function __ftol3_except */
     assert(key == mdbx_key_from_double((double)json_integer));
+#endif /* Workaround for MSVC */
     return key;
   }