diff --git a/base.mk b/base.mk
index f54ebf1..5a3bdea 100644
--- a/base.mk
+++ b/base.mk
@@ -89,7 +89,7 @@ purge:
 	${BC_CMD_RM_RF} compile_commands.json
 .PHONY: test
 test: build
-	${BC_CMD_ENVRUN} mypy ${BC_VAR_SCRIPTS}
+	${BC_CMD_ENVRUN} python3 -m mypy ${BC_VAR_SCRIPTS}
 	${BC_CMD_CMAKE_BUILD} ${BC_VAR_BUILD_PATH} test
 .PHONY: test-verbose
 test-verbose: build