diff --git a/scripts/coverage.sh b/scripts/coverage.sh
index ceff90785..ceb215def 100755
--- a/scripts/coverage.sh
+++ b/scripts/coverage.sh
@@ -3,5 +3,5 @@
 SOLIDITY_COVERAGE=true scripts/test.sh
 
 if [ "$CI" = true ]; then
-  curl -s https://codecov.io/bash | bash -s
+  curl -s https://codecov.io/bash | bash -s -- -C "$CIRCLE_SHA1"
 fi