diff --git a/ndk/platforms/android-3/include/signal.h b/ndk/platforms/android-3/include/signal.h
index 55408478b..0bfd550c7 100644
--- a/ndk/platforms/android-3/include/signal.h
+++ b/ndk/platforms/android-3/include/signal.h
@@ -42,12 +42,15 @@ __BEGIN_DECLS
 
 typedef int sig_atomic_t;
 
-/* crepy NIG / _NSIG handling, just to be safe */
-#ifndef NSIG
-#  define NSIG  _NSIG
-#endif
+/* _NSIG is used by the SIGRTMAX definition under <asm/signal.h>, however
+ * its definition is part of a #if __KERNEL__ .. #endif block in the original
+ * kernel headers and is thus not part of our cleaned-up versions.
+ *
+ * Looking at the current kernel sources, it is defined as 64 for all
+ * architectures except for the 'mips' one which set it to 128.
+ */
 #ifndef _NSIG
-#  define _NSIG  NSIG
+#  define _NSIG  64
 #endif
 
 extern const char * const sys_siglist[];
diff --git a/ndk/platforms/android-8/include/signal.h b/ndk/platforms/android-8/include/signal.h
index 440116443..91c3b00ad 100644
--- a/ndk/platforms/android-8/include/signal.h
+++ b/ndk/platforms/android-8/include/signal.h
@@ -42,12 +42,15 @@ __BEGIN_DECLS
 
 typedef int sig_atomic_t;
 
-/* crepy NIG / _NSIG handling, just to be safe */
-#ifndef NSIG
-#  define NSIG  _NSIG
-#endif
+/* _NSIG is used by the SIGRTMAX definition under <asm/signal.h>, however
+ * its definition is part of a #if __KERNEL__ .. #endif block in the original
+ * kernel headers and is thus not part of our cleaned-up versions.
+ *
+ * Looking at the current kernel sources, it is defined as 64 for all
+ * architectures except for the 'mips' one which set it to 128.
+ */
 #ifndef _NSIG
-#  define _NSIG  NSIG
+#  define _NSIG  64
 #endif
 
 extern const char * const sys_siglist[];