diff --git a/Makefile.in b/Makefile.in
index 850d391fda42d5c85df4d75e77b98d9a018c8df1..919f273c90d69b3e3d836d4ffe2c61986fd09d0f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -616,7 +616,7 @@ distdir: $(DISTFILES)
 	set -e; for d in sparc32 sparc64 x86 \
 		x86_64 x86_64/aesni x86_64/sha_ni x86_64/fat \
 		arm arm/neon arm/v6 arm/fat \
-		powerpc64 powerpc64/P8 powerpc64/fat ; do \
+		powerpc64 powerpc64/p8 powerpc64/fat ; do \
 	  mkdir "$(distdir)/$$d" ; \
 	  find "$(srcdir)/$$d" -maxdepth 1 '(' -name '*.asm' -o -name '*.m4' ')' \
 	    -exec cp '{}' "$(distdir)/$$d" ';' ; \
diff --git a/configure.ac b/configure.ac
index 98b4cf3d5457001bfe0fe9063b61d9efb070c0fc..c4e9b3043e3ee21f559a55aab49f03b6c74ddf29 100644
--- a/configure.ac
+++ b/configure.ac
@@ -447,7 +447,7 @@ if test "x$enable_assembler" = xyes ; then
       ;;
     *powerpc64*)
       if test "x$enable_power_crypto_ext" = xyes ; then
-        asm_path="powerpc64/P8 powerpc64"
+        asm_path="powerpc64/p8 powerpc64"
       fi
       ;;
 
diff --git a/powerpc64/P8/aes-decrypt-internal.asm b/powerpc64/p8/aes-decrypt-internal.asm
similarity index 100%
rename from powerpc64/P8/aes-decrypt-internal.asm
rename to powerpc64/p8/aes-decrypt-internal.asm
diff --git a/powerpc64/P8/aes-encrypt-internal.asm b/powerpc64/p8/aes-encrypt-internal.asm
similarity index 100%
rename from powerpc64/P8/aes-encrypt-internal.asm
rename to powerpc64/p8/aes-encrypt-internal.asm