diff --git a/ndk/platforms/android-13/include/math.h b/ndk/platforms/android-13/include/math.h
index 541f6055ff2..1eb975e8d17 100644
--- a/ndk/platforms/android-13/include/math.h
+++ b/ndk/platforms/android-13/include/math.h
@@ -21,8 +21,6 @@
 #include <sys/types.h>
 #include <limits.h>
 
-#define __pure2
-
 /*
  * ANSI/POSIX
  */
diff --git a/ndk/platforms/android-18/include/math.h b/ndk/platforms/android-18/include/math.h
index 4198842e490..da4d9946bff 100644
--- a/ndk/platforms/android-18/include/math.h
+++ b/ndk/platforms/android-18/include/math.h
@@ -21,8 +21,6 @@
 #include <sys/types.h>
 #include <limits.h>
 
-#define __pure2
-
 /*
  * ANSI/POSIX
  */
diff --git a/ndk/platforms/android-9/include/math.h b/ndk/platforms/android-9/include/math.h
index 3b5660f305b..9f63ea0bbb5 100644
--- a/ndk/platforms/android-9/include/math.h
+++ b/ndk/platforms/android-9/include/math.h
@@ -21,8 +21,6 @@
 #include <sys/types.h>
 #include <limits.h>
 
-#define __pure2
-
 /*
  * ANSI/POSIX
  */