diff --git a/build.sh b/build.sh
index d561b84c7..877a35101 100755
--- a/build.sh
+++ b/build.sh
@@ -168,7 +168,7 @@ generate_coverage_badge() {
 	log_info "Generating code coverage badge"
 	CORE_REPORT=uhabits-core/build/reports/jacoco/test/jacocoTestReport.xml
 	rm -f ${OUTPUTS_DIR}/coverage-badge.svg
-	python tools/coverage-badge/badge.py -i $CORE_REPORT -o ${OUTPUTS_DIR}/coverage-badge
+	python3 tools/coverage-badge/badge.py -i $CORE_REPORT -o ${OUTPUTS_DIR}/coverage-badge
 }
 
 fetch_artifacts() {
diff --git a/tools/coverage-badge/badge.py b/tools/coverage-badge/badge.py
index 08d8733e7..0e1ffe421 100644
--- a/tools/coverage-badge/badge.py
+++ b/tools/coverage-badge/badge.py
@@ -47,7 +47,7 @@ def get_total(report):
     missed = 0
     covered = 0
     for r in report.split(":"):
-        doc = BeautifulSoup(file(r), 'xml')
+        doc = BeautifulSoup(open(r), 'xml')
         tag = doc.select("report > counter[type^INST]")[0]
         missed = missed + float(tag['missed'])
         covered = covered + float(tag['covered'])