diff --git a/cc/config/riscv64_device.go b/cc/config/riscv64_device.go
index e820260..0964015 100644
--- a/cc/config/riscv64_device.go
+++ b/cc/config/riscv64_device.go
@@ -39,6 +39,9 @@
 		// Equivalent to "-munaligned-access", but our clang doesn't have that yet.
 		"-Xclang -target-feature -Xclang +unaligned-scalar-mem",
 		"-Xclang -target-feature -Xclang +unaligned-vector-mem",
+		// We should change the default for this in clang, but for now...
+		// (https://github.com/google/android-riscv64/issues/124)
+		"-mllvm -jump-is-expensive=false",
 	}
 
 	riscv64Lldflags = append(riscv64Ldflags,