diff --git a/Makefile b/Makefile
index c4ab38102a..53f4cad235 100644
--- a/Makefile
+++ b/Makefile
@@ -56,11 +56,11 @@ endif
 ifeq ($(OFFICIAL),yes)
     SETUP_TAR_NAME=$(NAME)-setup-$(RELEASE_VERSION)
     SDIST_TAR_NAME=$(NAME)-$(RELEASE_VERSION)
-	WHEEL_NAME=$(NAME)-$(RELEASE_VERSION)
+    WHEEL_NAME=$(NAME)-$(RELEASE_VERSION)
 else
     SETUP_TAR_NAME=$(NAME)-setup-$(RELEASE_VERSION)-$(RELEASE)
     SDIST_TAR_NAME=$(NAME)-$(RELEASE_VERSION)-$(RELEASE)
-	WHEEL_NAME=$(NAME)-$(RELEASE_VERSION)_$(RELEASE)
+    WHEEL_NAME=$(NAME)-$(RELEASE_VERSION)_$(RELEASE)
 endif
 
 SDIST_COMMAND ?= sdist