diff --git a/tools/rules.build_defs b/tools/rules.build_defs
index 5a53d68fcb231dffb0029645b5f73dce41877199..7ccd431d754e5dd82191e9945e432a6091c7fc91 100644
--- a/tools/rules.build_defs
+++ b/tools/rules.build_defs
@@ -1,6 +1,6 @@
 def minify(src: str, out: str):
     return genrule(
-        name = "minify_%s" % src.replace("/", "_"),
+        name = "%s#minify" % src.replace("/", "_"),
         cmd = "$TOOL -o $OUT $SRC",
         srcs = [src],
         outs = [out],
@@ -9,7 +9,7 @@ def minify(src: str, out: str):
 
 def sass(src: str, out: str, data: list = [], style: str = "compressed"):
     return genrule(
-        name = "sass_%s" % src.replace("/", "_"),
+        name = "%s#sass" % src.replace("/", "_"),
         cmd = ["$TOOL --style=%s $SRCS_ENTRYPOINT $OUT" % style],
         srcs = {"entrypoint": [src],"data": data},
         outs = [out],
@@ -19,7 +19,7 @@ def sass(src: str, out: str, data: list = [], style: str = "compressed"):
 
 def static(src: str, out: str):
     return genrule(
-        name = "static_%s" % src.replace("/", "_"),
+        name = "%s#copy" % src.replace("/", "_"),
         cmd = ["$TOOL $SRC $OUT"],
         srcs = [src],
         outs = [out],