diff --git a/src/catch2/internal/catch_clara.hpp b/src/catch2/internal/catch_clara.hpp
index 2319792f..633db558 100644
--- a/src/catch2/internal/catch_clara.hpp
+++ b/src/catch2/internal/catch_clara.hpp
@@ -25,12 +25,21 @@
   #pragma clang diagnostic ignored "-Wdeprecated"
 #endif
 
+#if defined(__GNUC__)
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif
+
 #include <catch2/internal/catch_clara_upstream.hpp>
 
 #if defined(__clang__)
   #pragma clang diagnostic pop
 #endif
 
+#if defined(__GNUC__)
+  #pragma GCC diagnostic pop
+#endif
+
 
 // Restore Clara's value for console width, if present
 #ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH