diff --git a/README.md b/README.md
index 2671b5a30..89def00e6 100644
--- a/README.md
+++ b/README.md
@@ -176,7 +176,7 @@ Once the toolchain is installed, you can use the following scripts to build and
 	scripts/arm-cross-compile.sh
 	scripts/arm-run-tests-qemu.sh
 
-At present there are still some quirks with our ARM build, including problems with SIKE, Picnic and qTESLA and the known answer tests causing build errors or segmentation faults.  See issues #461, #462, and #463.
+At present there are still some quirks with our ARM build, including problems with Picnic and qTESLA and the known answer tests causing build errors or segmentation faults.  See issues #461, #462, and #463.
 
 Documentation
 -------------
diff --git a/src/kem/sike/Makefile.am b/src/kem/sike/Makefile.am
index 55ddba072..9e72e76a9 100644
--- a/src/kem/sike/Makefile.am
+++ b/src/kem/sike/Makefile.am
@@ -3,17 +3,19 @@ noinst_LTLIBRARIES = libkemsike.la
 
 libkemsike_la_SOURCES = kem_sike.c P434/P434.c P503/P503.c P610/P610.c P751/P751.c
 
+# FIXMEOQS: enable FAST mode, assembly
+
 if X86
 SIKE_FLAGS = -D_GENERIC_ -D_X86_
 else
 if X86_64
-SIKE_FLAGS = -D_AMD64_
+SIKE_FLAGS = -D_GENERIC_ -D_AMD64_
 else
 if ARM
 SIKE_FLAGS = -D_GENERIC_ -D_ARM_
 else
 if ARM64
-SIKE_FLAGS = -D_ARM64_
+SIKE_FLAGS = -D_GENERIC_ -D_ARM64_
 endif # ARM64
 endif # ARM
 endif # X86_64
diff --git a/src/kem/sike/P434/P434.c b/src/kem/sike/P434/P434.c
index 7e63cded3..013cc31c8 100644
--- a/src/kem/sike/P434/P434.c
+++ b/src/kem/sike/P434/P434.c
@@ -114,7 +114,7 @@ static const unsigned int strat_Bob[MAX_Bob - 1] = {
 
 #if defined(X86_64)
 #include "AMD64/fp_x64.c"
-#include "AMD64/fp_x64_asm.S"
+// #include "AMD64/fp_x64_asm.S" FIXMEOQS
 #else
 #include "generic/fp_generic.c"
 #endif
diff --git a/src/kem/sike/P503/P503.c b/src/kem/sike/P503/P503.c
index fee876305..fefddd17b 100644
--- a/src/kem/sike/P503/P503.c
+++ b/src/kem/sike/P503/P503.c
@@ -120,10 +120,10 @@ static const unsigned int strat_Bob[MAX_Bob - 1] = {
 
 #if defined(X86_64)
 #include "AMD64/fp_x64.c"
-#include "AMD64/fp_x64_asm.S"
+// #include "AMD64/fp_x64_asm.S" FIXMEOQS
 #elif defined(ARM64)
 #include "ARM64/fp_arm64.c"
-#include "ARM64/fp_arm64_asm.S"
+// #include "ARM64/fp_arm64_asm.S"  FIXMEOQS
 #else
 #include "generic/fp_generic.c"
 #endif
diff --git a/src/kem/sike/P610/P610.c b/src/kem/sike/P610/P610.c
index f5b457926..4db568173 100644
--- a/src/kem/sike/P610/P610.c
+++ b/src/kem/sike/P610/P610.c
@@ -122,7 +122,7 @@ static const unsigned int strat_Bob[MAX_Bob - 1] = {
 
 #if defined(X86_64)
 #include "AMD64/fp_x64.c"
-#include "AMD64/fp_x64_asm.S"
+// #include "AMD64/fp_x64_asm.S" FIXMEOQS
 #else
 #include "generic/fp_generic.c"
 #endif
diff --git a/src/kem/sike/P751/P751.c b/src/kem/sike/P751/P751.c
index a1c8f3480..df1501f8c 100644
--- a/src/kem/sike/P751/P751.c
+++ b/src/kem/sike/P751/P751.c
@@ -124,7 +124,7 @@ static const unsigned int strat_Bob[MAX_Bob - 1] = {
 
 #if defined(X86_64)
 #include "AMD64/fp_x64.c"
-#include "AMD64/fp_x64_asm.S"
+// #include "AMD64/fp_x64_asm.S" FIXMEOQS
 #elif defined(ARM64)
 #include "ARM64/fp_arm64.c"
 #else