diff --git a/repos/base-linux/src/lib/syscall/linux_syscalls.h b/repos/base-linux/src/lib/syscall/linux_syscalls.h
index a22f2bb4a0..bb1148a101 100644
--- a/repos/base-linux/src/lib/syscall/linux_syscalls.h
+++ b/repos/base-linux/src/lib/syscall/linux_syscalls.h
@@ -57,7 +57,7 @@ extern "C" void wait_for_continue(void);
 		char str[128];                                             \
 		Genode::snprintf(str, sizeof(str),                         \
 		                 ESC_ERR fmt ESC_END "\n", ##__VA_ARGS__); \
-		Genode::raw(str);                                          \
+		Genode::raw((char const *)str);                            \
 	} while (0)