diff --git a/platformio/builder/main.py b/platformio/builder/main.py
index 07958308..36121743 100644
--- a/platformio/builder/main.py
+++ b/platformio/builder/main.py
@@ -55,7 +55,7 @@ DEFAULT_ENV_OPTIONS = dict(
         "link",
         "piohooks",
         "pioasm",
-        "platformio",
+        "piobuild",
         "pioproject",
         "pioplatform",
         "piotest",
diff --git a/platformio/builder/tools/compilation_db.py b/platformio/builder/tools/compilation_db.py
index 23280dec..9fa11c86 100644
--- a/platformio/builder/tools/compilation_db.py
+++ b/platformio/builder/tools/compilation_db.py
@@ -29,7 +29,7 @@ import os
 
 import SCons
 
-from platformio.builder.tools.platformio import SRC_ASM_EXT, SRC_C_EXT, SRC_CXX_EXT
+from platformio.builder.tools.piobuild import SRC_ASM_EXT, SRC_C_EXT, SRC_CXX_EXT
 from platformio.proc import where_is_program
 
 # Implements the ability for SCons to emit a compilation database for the MongoDB project. See
diff --git a/platformio/builder/tools/platformio.py b/platformio/builder/tools/piobuild.py
similarity index 99%
rename from platformio/builder/tools/platformio.py
rename to platformio/builder/tools/piobuild.py
index d642a8f7..4a32a1d7 100644
--- a/platformio/builder/tools/platformio.py
+++ b/platformio/builder/tools/piobuild.py
@@ -12,8 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import absolute_import
-
 import fnmatch
 import os
 import sys
diff --git a/platformio/builder/tools/piolib.py b/platformio/builder/tools/piolib.py
index e2b98d91..8e1bec15 100644
--- a/platformio/builder/tools/piolib.py
+++ b/platformio/builder/tools/piolib.py
@@ -27,7 +27,7 @@ from SCons.Script import ARGUMENTS  # pylint: disable=import-error
 from SCons.Script import DefaultEnvironment  # pylint: disable=import-error
 
 from platformio import exception, fs
-from platformio.builder.tools import platformio as piotool
+from platformio.builder.tools import piobuild
 from platformio.compat import IS_WINDOWS, hashlib_encode_data, string_types
 from platformio.http import HTTPClientError, InternetIsOffline
 from platformio.package.exception import (
@@ -92,7 +92,7 @@ class LibBuilderFactory:
                 return ["mbed"]
             for fname in files:
                 if not fs.path_endswith_ext(
-                    fname, piotool.SRC_BUILD_EXT + piotool.SRC_HEADER_EXT
+                    fname, piobuild.SRC_BUILD_EXT + piobuild.SRC_HEADER_EXT
                 ):
                     continue
                 with io.open(
@@ -197,7 +197,7 @@ class LibBuilderBase:
 
     @property
     def src_filter(self):
-        return piotool.SRC_FILTER_DEFAULT + [
+        return piobuild.SRC_FILTER_DEFAULT + [
             "-<example%s>" % os.sep,
             "-<examples%s>" % os.sep,
             "-<test%s>" % os.sep,
@@ -329,7 +329,7 @@ class LibBuilderBase:
         return [
             os.path.join(self.src_dir, item)
             for item in self.env.MatchSourceFiles(
-                self.src_dir, self.src_filter, piotool.SRC_BUILD_EXT
+                self.src_dir, self.src_filter, piobuild.SRC_BUILD_EXT
             )
         ]
 
@@ -394,10 +394,10 @@ class LibBuilderBase:
                     result.append(item)
                 if not self.PARSE_SRC_BY_H_NAME:
                     continue
-                if not fs.path_endswith_ext(item_path, piotool.SRC_HEADER_EXT):
+                if not fs.path_endswith_ext(item_path, piobuild.SRC_HEADER_EXT):
                     continue
                 item_fname = item_path[: item_path.rindex(".")]
-                for ext in piotool.SRC_C_EXT + piotool.SRC_CXX_EXT:
+                for ext in piobuild.SRC_C_EXT + piobuild.SRC_CXX_EXT:
                     if not os.path.isfile("%s.%s" % (item_fname, ext)):
                         continue
                     item_c_node = self.env.File("%s.%s" % (item_fname, ext))
@@ -558,7 +558,7 @@ class ArduinoLibBuilder(LibBuilderBase):
 
         src_filter = []
         is_utility = os.path.isdir(os.path.join(self.path, "utility"))
-        for ext in piotool.SRC_BUILD_EXT + piotool.SRC_HEADER_EXT:
+        for ext in piobuild.SRC_BUILD_EXT + piobuild.SRC_HEADER_EXT:
             # arduino ide ignores files with .asm or .ASM extensions
             if ext.lower() == "asm":
                 continue
diff --git a/platformio/builder/tools/piotest.py b/platformio/builder/tools/piotest.py
index 17431871..b3b324b1 100644
--- a/platformio/builder/tools/piotest.py
+++ b/platformio/builder/tools/piotest.py
@@ -14,7 +14,7 @@
 
 import os
 
-from platformio.builder.tools import platformio as piotool
+from platformio.builder.tools import piobuild
 from platformio.test.result import TestSuite
 from platformio.test.runners.factory import TestRunnerFactory
 
@@ -22,7 +22,7 @@ from platformio.test.runners.factory import TestRunnerFactory
 def ConfigureTestTarget(env):
     env.Append(
         CPPDEFINES=["UNIT_TEST"],  # deprecated, use PIO_UNIT_TESTING
-        PIOTEST_SRC_FILTER=[f"+<*.{ext}>" for ext in piotool.SRC_BUILD_EXT],
+        PIOTEST_SRC_FILTER=[f"+<*.{ext}>" for ext in piobuild.SRC_BUILD_EXT],
     )
     env.Prepend(CPPPATH=["$PROJECT_TEST_DIR"])
 
@@ -36,7 +36,7 @@ def ConfigureTestTarget(env):
             env.Prepend(
                 PIOTEST_SRC_FILTER=[
                     f"+<{test_name}{os.path.sep}*.{ext}>"
-                    for ext in piotool.SRC_BUILD_EXT
+                    for ext in piobuild.SRC_BUILD_EXT
                 ],
                 CPPPATH=[os.path.join("$PROJECT_TEST_DIR", test_name)],
             )