diff --git a/source/solve.sh b/source/solve.sh
index e5c2e100cdc0a5f52535d048fb409e366417457d..4c40299ec2c596e1c73a1a606d4dd663ac068b66 100644
--- a/source/solve.sh
+++ b/source/solve.sh
@@ -1,8 +1,8 @@
 #!/bin/sh
 # solve.sh
-# Last Change: 2018/08/26 (Sun) 23:40:52.
+# Last Change: 2018/08/26 (Sun) 23:44:42.
 
-gcc % -O3 -lm -g -o .x_solver -Wall
+gcc solver.c -O3 -lm -g -o .x_solver -Wall
 ./.x_solver < ../ADC2017_Q_A/all/Q/Q01.txt >myans/A01.txt &
 ./.x_solver < ../ADC2017_Q_A/all/Q/Q02.txt >myans/A02.txt &
 ./.x_solver < ../ADC2017_Q_A/all/Q/Q03.txt >myans/A03.txt &