diff --git a/platform/android/detect.py b/platform/android/detect.py
index b1fbf4058a0..aa482524351 100644
--- a/platform/android/detect.py
+++ b/platform/android/detect.py
@@ -295,7 +295,7 @@ def configure(env):
                         '/toolchains/' + target_subpath + '/prebuilt/' + host_subpath + '/' + abi_subpath + '/lib'])
 
     env.Append(CPPPATH=['#platform/android'])
-    env.Append(CPPFLAGS=['-DANDROID_ENABLED', '-DUNIX_ENABLED', '-DNO_FCNTL', '-DMPC_FIXED_POINT'])
+    env.Append(CPPFLAGS=['-DANDROID_ENABLED', '-DUNIX_ENABLED', '-DNO_FCNTL'])
     env.Append(LIBS=['OpenSLES', 'EGL', 'GLESv3', 'android', 'log', 'z', 'dl'])
 
     # TODO: Move that to opus module's config
diff --git a/platform/iphone/detect.py b/platform/iphone/detect.py
index 797a7d31aa3..d0e6a4cefe7 100644
--- a/platform/iphone/detect.py
+++ b/platform/iphone/detect.py
@@ -173,7 +173,7 @@ def configure(env):
     env['ENV']['CODESIGN_ALLOCATE'] = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate'
 
     env.Append(CPPPATH=['#platform/iphone'])
-    env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DMPC_FIXED_POINT', '-DCOREAUDIO_ENABLED'])
+    env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES_ENABLED', '-DCOREAUDIO_ENABLED'])
 
     # TODO: Move that to opus module's config
     if 'module_opus_enabled' in env and env['module_opus_enabled']: