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-rw-r--r--src/csharp/ext/grpc_csharp_ext.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/csharp/ext/grpc_csharp_ext.c b/src/csharp/ext/grpc_csharp_ext.c
index 0d2a74adb6..0eb236590c 100644
--- a/src/csharp/ext/grpc_csharp_ext.c
+++ b/src/csharp/ext/grpc_csharp_ext.c
@@ -850,7 +850,7 @@ GPR_EXPORT void GPR_CALLTYPE grpcsharp_redirect_log(grpcsharp_log_func func) {
typedef void(GPR_CALLTYPE *test_callback_funcptr)(gpr_int32 success);
/* Version info */
-GPR_EXPORT char *GPR_CALLTYPE grpcsharp_version_string() {
+GPR_EXPORT const char *GPR_CALLTYPE grpcsharp_version_string() {
return grpc_version_string();
}