diff --git a/android/build-all.py b/android/build-all.py
index cc331197..d45ce6bb 100644
--- a/android/build-all.py
+++ b/android/build-all.py
@@ -71,7 +71,7 @@ print("Building all examples...")
 
 for example in EXAMPLES:
     print(COLOR_GREEN + "Building %s (%d/%d)" % (example, CURR_INDEX, len(EXAMPLES)) + COLOR_END)
-    if subprocess.call("python build.py %s %s" % (example, BUILD_ARGUMENTS)) != 0:
+    if subprocess.call(("python build.py %s %s" % (example, BUILD_ARGUMENTS)).split(' ')) != 0:
         print("Error during build process for %s" % example)
         sys.exit(-1)
     CURR_INDEX += 1
diff --git a/android/build.py b/android/build.py
index 2d1f2be0..115c8d88 100644
--- a/android/build.py
+++ b/android/build.py
@@ -29,7 +29,7 @@ if not os.path.isfile(os.path.join(PROJECT_FOLDER, "build.xml")):
     ANDROID_CMD = "android"
     if os.name == 'nt':
         ANDROID_CMD += ".bat"
-    if subprocess.call("%s update project -p ./%s -t %s" % (ANDROID_CMD, PROJECT_FOLDER, SDK_VERSION)) != 0:
+    if subprocess.call(("%s update project -p ./%s -t %s" % (ANDROID_CMD, PROJECT_FOLDER, SDK_VERSION)).split(' ')) != 0:
         print("Error: Project update failed!")
         sys.exit(-1)
 
@@ -43,7 +43,7 @@ SHADER_DIR = EXAMPLE_JSON["directories"]["shaders"]
 # Additional
 ADDITIONAL_DIRS = []
 ADDITIONAL_FILES = []
-if "additional" in EXAMPLE_JSON["assets"]:
+if "assets" in EXAMPLE_JSON and "additional" in EXAMPLE_JSON["assets"]:
     ADDITIONAL = EXAMPLE_JSON["assets"]["additional"]
     if "directories" in ADDITIONAL:
         ADDITIONAL_DIRS = ADDITIONAL["directories"]
diff --git a/android/install-all.py b/android/install-all.py
index f4cfa06f..16c3b1e6 100644
--- a/android/install-all.py
+++ b/android/install-all.py
@@ -8,7 +8,6 @@ if answer:
     for arg in sys.argv[1:]:
         if arg == "-validation":
             BUILD_ARGUMENTS += "-validation"
-    if subprocess.call("python build-all.py -deploy %s" % BUILD_ARGUMENTS) != 0:
+    if subprocess.call(("python build-all.py -deploy %s" % BUILD_ARGUMENTS).split(' ')) != 0:
         print("Error: Not all examples may have been installed!")
         sys.exit(-1)
-    
\ No newline at end of file