diff --git a/disasm/disasm.cc b/disasm/disasm.cc
index 1d7c6d5b..a8ba91e6 100644
--- a/disasm/disasm.cc
+++ b/disasm/disasm.cc
@@ -10,6 +10,10 @@
 // For std::reverse:
 #include <algorithm>
 
+#ifdef __GNUC__
+# pragma GCC diagnostic ignored "-Wunused-variable"
+#endif
+
 // Indicates that the next arg (only) is optional.
 // If the result of converting the next arg to a string is ""
 // then it will not be printed.
diff --git a/riscv/processor.cc b/riscv/processor.cc
index 9bb7d04b..217d49dd 100644
--- a/riscv/processor.cc
+++ b/riscv/processor.cc
@@ -20,6 +20,10 @@
 #include <string>
 #include <algorithm>
 
+#ifdef __GNUC__
+# pragma GCC diagnostic ignored "-Wunused-variable"
+#endif
+
 #undef STATE
 #define STATE state