diff --git a/gems/src/server/d3m/main.cc b/gems/src/server/d3m/main.cc
index 686dbe7a3..31c5b4bff 100644
--- a/gems/src/server/d3m/main.cc
+++ b/gems/src/server/d3m/main.cc
@@ -268,7 +268,7 @@ int main(int argc, char **argv)
static Genode::Slave ps2_slave(ps2_ep, ps2_policy, 512*1024);
/* create USB driver */
- char const *config = "";
+ char const *config = "";
static Rpc_entrypoint usb_ep(&cap, STACK_SIZE, "usb_slave");
static Usb_policy usb_policy(usb_ep, input_source_registry,
block_driver_registry, env()->ram_session(),