diff --git a/gyp/shaders.gypi b/gyp/shaders.gypi
index edbcb61f2..fbf8e3197 100644
--- a/gyp/shaders.gypi
+++ b/gyp/shaders.gypi
@@ -16,7 +16,7 @@
             '<(SHARED_INTERMEDIATE_DIR)/src/shader/shaders_gl.cpp',
             '<(SHARED_INTERMEDIATE_DIR)/src/shader/shaders_gles2.cpp',
           ],
-          'action': ['<@(python)', 'scripts/build-shaders.py', '<(SHARED_INTERMEDIATE_DIR)', '<@(_inputs)'],
+          'action': ['scripts/build-shaders.py', '<(SHARED_INTERMEDIATE_DIR)', '<@(_inputs)'],
         }
       ],
       'direct_dependent_settings': {
diff --git a/gyp/version.gypi b/gyp/version.gypi
index 68f777f0a..1cc2eb351 100644
--- a/gyp/version.gypi
+++ b/gyp/version.gypi
@@ -13,7 +13,7 @@
           'outputs': [
             '<(SHARED_INTERMEDIATE_DIR)/include/mbgl/util/version.hpp',
           ],
-          'action': ['<@(python)', '<@(_inputs)', '<(SHARED_INTERMEDIATE_DIR)', '<!@(git describe --tags --always --abbrev=0)', '<!@(git rev-parse HEAD)'],
+          'action': ['<@(_inputs)', '<(SHARED_INTERMEDIATE_DIR)', '<!@(git describe --tags --always --abbrev=0)', '<!@(git rev-parse HEAD)'],
         }
       ],
       'direct_dependent_settings': {
diff --git a/scripts/build-shaders.py b/scripts/build-shaders.py
old mode 100644
new mode 100755
diff --git a/scripts/build-version.py b/scripts/build-version.py
old mode 100644
new mode 100755