diff --git a/src/lib_json/json_reader.cpp b/src/lib_json/json_reader.cpp
index ef256c8df..60e867610 100644
--- a/src/lib_json/json_reader.cpp
+++ b/src/lib_json/json_reader.cpp
@@ -30,7 +30,7 @@
 #elif defined(__ANDROID__) || defined(__QNXNTO__)
 #define snprintf snprintf
 #elif __cplusplus >= 201103L
-#if !defined(__MINGW32__)
+#if !defined(__MINGW32__) && !defined(__CYGWIN__)
 #define snprintf std::snprintf
 #endif
 #endif
diff --git a/src/lib_json/json_writer.cpp b/src/lib_json/json_writer.cpp
index 9f1136722..045dc4451 100644
--- a/src/lib_json/json_writer.cpp
+++ b/src/lib_json/json_writer.cpp
@@ -57,7 +57,7 @@
 #elif defined(__ANDROID__) || defined(__QNXNTO__)
 #define snprintf snprintf
 #elif __cplusplus >= 201103L
-#if !defined(__MINGW32__)
+#if !defined(__MINGW32__) && !defined(__CYGWIN__)
 #define snprintf std::snprintf
 #endif
 #endif