diff --git a/libc/src/string/memory_utils/bcmp_implementations.h b/libc/src/string/memory_utils/bcmp_implementations.h
index 69aae253fc210..bfd52014325e5 100644
--- a/libc/src/string/memory_utils/bcmp_implementations.h
+++ b/libc/src/string/memory_utils/bcmp_implementations.h
@@ -20,14 +20,13 @@
 #elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
 #include "src/string/memory_utils/aarch64/bcmp_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_BCMP inline_bcmp_aarch64
-#elif defined(LIBC_TARGET_ARCH_IS_ARM)
-#include "src/string/memory_utils/generic/byte_per_byte.h"
-#define LIBC_SRC_STRING_MEMORY_UTILS_BCMP inline_bcmp_byte_per_byte
 #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
 #include "src/string/memory_utils/riscv/bcmp_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_BCMP inline_bcmp_riscv
 #else
-#error "Unsupported architecture"
+// We may want to error instead of defaulting to suboptimal implementation.
+#include "src/string/memory_utils/generic/byte_per_byte.h"
+#define LIBC_SRC_STRING_MEMORY_UTILS_BCMP inline_bcmp_byte_per_byte
 #endif
 
 namespace __llvm_libc {
diff --git a/libc/src/string/memory_utils/memcmp_implementations.h b/libc/src/string/memory_utils/memcmp_implementations.h
index 3262b2840d322..e18e64072732c 100644
--- a/libc/src/string/memory_utils/memcmp_implementations.h
+++ b/libc/src/string/memory_utils/memcmp_implementations.h
@@ -21,14 +21,13 @@
 #elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
 #include "src/string/memory_utils/aarch64/memcmp_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_aarch64
-#elif defined(LIBC_TARGET_ARCH_IS_ARM)
-#include "src/string/memory_utils/generic/byte_per_byte.h"
-#define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_byte_per_byte
 #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
 #include "src/string/memory_utils/riscv/memcmp_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_riscv
 #else
-#error "Unsupported architecture"
+// We may want to error instead of defaulting to suboptimal implementation.
+#include "src/string/memory_utils/generic/byte_per_byte.h"
+#define LIBC_SRC_STRING_MEMORY_UTILS_MEMCMP inline_memcmp_byte_per_byte
 #endif
 
 namespace __llvm_libc {
diff --git a/libc/src/string/memory_utils/memcpy_implementations.h b/libc/src/string/memory_utils/memcpy_implementations.h
index 16f4302f5c4db..657fbac3177ff 100644
--- a/libc/src/string/memory_utils/memcpy_implementations.h
+++ b/libc/src/string/memory_utils/memcpy_implementations.h
@@ -25,14 +25,13 @@
 #elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
 #include "src/string/memory_utils/aarch64/memcpy_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCPY inline_memcpy_aarch64
-#elif defined(LIBC_TARGET_ARCH_IS_ARM)
-#include "src/string/memory_utils/generic/byte_per_byte.h"
-#define LIBC_SRC_STRING_MEMORY_UTILS_MEMCPY inline_memcpy_byte_per_byte
 #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
 #include "src/string/memory_utils/riscv/memcpy_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMCPY inline_memcpy_riscv
 #else
-#error "Unsupported architecture"
+// We may want to error instead of defaulting to suboptimal implementation.
+#include "src/string/memory_utils/generic/byte_per_byte.h"
+#define LIBC_SRC_STRING_MEMORY_UTILS_MEMCPY inline_memcpy_byte_per_byte
 #endif
 
 namespace __llvm_libc {
diff --git a/libc/src/string/memory_utils/memmove_implementations.h b/libc/src/string/memory_utils/memmove_implementations.h
index c62e235a5be6f..78ae7a88cc457 100644
--- a/libc/src/string/memory_utils/memmove_implementations.h
+++ b/libc/src/string/memory_utils/memmove_implementations.h
@@ -17,14 +17,13 @@
 #elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
 #include "src/string/memory_utils/aarch64/memmove_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMMOVE inline_memmove_aarch64
-#elif defined(LIBC_TARGET_ARCH_IS_ARM)
-#include "src/string/memory_utils/generic/byte_per_byte.h"
-#define LIBC_SRC_STRING_MEMORY_UTILS_MEMMOVE inline_memmove_byte_per_byte
 #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
 #include "src/string/memory_utils/riscv/memmove_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMMOVE inline_memmove_riscv
 #else
-#error "Unsupported architecture"
+// We may want to error instead of defaulting to suboptimal implementation.
+#include "src/string/memory_utils/generic/byte_per_byte.h"
+#define LIBC_SRC_STRING_MEMORY_UTILS_MEMMOVE inline_memmove_byte_per_byte
 #endif
 
 namespace __llvm_libc {
diff --git a/libc/src/string/memory_utils/memset_implementations.h b/libc/src/string/memory_utils/memset_implementations.h
index 1fb25a5afade9..37ceff96fce9c 100644
--- a/libc/src/string/memory_utils/memset_implementations.h
+++ b/libc/src/string/memory_utils/memset_implementations.h
@@ -21,14 +21,13 @@
 #elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
 #include "src/string/memory_utils/aarch64/memset_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMSET inline_memset_aarch64
-#elif defined(LIBC_TARGET_ARCH_IS_ARM)
-#include "src/string/memory_utils/generic/byte_per_byte.h"
-#define LIBC_SRC_STRING_MEMORY_UTILS_MEMSET inline_memset_byte_per_byte
 #elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
 #include "src/string/memory_utils/riscv/memset_implementations.h"
 #define LIBC_SRC_STRING_MEMORY_UTILS_MEMSET inline_memset_riscv
 #else
-#error "Unsupported architecture"
+// We may want to error instead of defaulting to suboptimal implementation.
+#include "src/string/memory_utils/generic/byte_per_byte.h"
+#define LIBC_SRC_STRING_MEMORY_UTILS_MEMSET inline_memset_byte_per_byte
 #endif
 
 namespace __llvm_libc {