diff --git a/scripts/build.sh b/scripts/build.sh
index 84f87d6d4..3c2c889e0 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -37,7 +37,7 @@ set +e
 gox \
     -os="${XC_OS}" \
     -arch="${XC_ARCH}" \
-    -ldflags "-X github.com/mitchellh/packer/version.GitCommit ${GIT_COMMIT}${GIT_DIRTY}" \
+    -ldflags "-X github.com/mitchellh/packer/version.GitCommit=${GIT_COMMIT}${GIT_DIRTY}" \
     -output "pkg/{{.OS}}_{{.Arch}}/packer" \
     .
 set -e