diff --git a/app/localize/start.h b/app/localize/start.h
index 5893178e..390134cd 100644
--- a/app/localize/start.h
+++ b/app/localize/start.h
@@ -47,7 +47,7 @@
 # define TXTCPU        "amd64"
 #endif
 /******************************************************************************/
-#ifdef __powerpc__
+#if defined(__powerpc__) || defined(__powerpc64__)
 # define TXTCPU        "PowerPC"
 #endif
 /******************************************************************************/
diff --git a/lib/clib/memcpy.c b/lib/clib/memcpy.c
index a7a57f1a..4e366966 100644
--- a/lib/clib/memcpy.c
+++ b/lib/clib/memcpy.c
@@ -52,7 +52,7 @@
  * sizeof(word) MUST BE A POWER OF TWO
  * SO THAT wmask BELOW IS ALL ONES
  */
-#if defined(__x86_64__) || defined(__aarch64__) || defined(_M_AMD64) || defined(_M_ARM64)
+#if defined(__x86_64__) || defined(__aarch64__) || defined(_M_AMD64) || defined(_M_ARM64) || defined(__powerpc64__)
 typedef uint64_t word;
 #else
 typedef uint32_t word;
diff --git a/lib/real/prim.h b/lib/real/prim.h
index 01106e01..f7aceb63 100644
--- a/lib/real/prim.h
+++ b/lib/real/prim.h
@@ -76,7 +76,7 @@ int __kernel_rem_pio2(double *x, double *y, int e0, int nx, int prec, const int
 #define __IEEE_LITTLE_ENDIAN
 #endif
 
-#if defined(PPCCPU) || defined(__PPC__) || defined(__powerpc__)
+#if defined(PPCCPU) || defined(__PPC__) || defined(__powerpc__) || defined(__powerpc64__)
 #define __IEEE_BIG_ENDIAN
 #endif