diff --git a/build.sh b/build.sh
index 0e7596b..3e84a25 100755
--- a/build.sh
+++ b/build.sh
@@ -1,3 +1,4 @@
 #!/usr/bin/env bash
+set -v
 rm ethercat
 gcc -Wall -Wextra ethercat.c -o ethercat