diff --git a/bin/system_info/print_system_info.c b/bin/system_info/print_system_info.c
index 5197e5d85..cfcfa00f5 100644
--- a/bin/system_info/print_system_info.c
+++ b/bin/system_info/print_system_info.c
@@ -44,6 +44,7 @@ int main(void) {
     fprintf(stdout, "       'arm_crc': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_ARM_CRC) ? "true" : "false");
     fprintf(stdout, "       'arm_pmull': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_ARM_PMULL) ? "true" : "false");
     fprintf(stdout, "       'arm_crypto': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_ARM_CRYPTO) ? "true" : "false");
+    fprintf(stdout, "       'amd_ssse3': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_SSSE_3) ? "true" : "false");
     fprintf(stdout, "       'amd_sse4_1': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_SSE_4_1) ? "true" : "false");
     fprintf(stdout, "       'amd_sse4_2': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_SSE_4_2) ? "true" : "false");
     fprintf(stdout, "       'amd_clmul': %s,\n", aws_cpu_has_feature(AWS_CPU_FEATURE_CLMUL) ? "true" : "false");
diff --git a/include/aws/common/cpuid.h b/include/aws/common/cpuid.h
index 9ab7d5059..f139cfeda 100644
--- a/include/aws/common/cpuid.h
+++ b/include/aws/common/cpuid.h
@@ -13,6 +13,7 @@ enum aws_cpu_feature_name {
     AWS_CPU_FEATURE_CLMUL,
     AWS_CPU_FEATURE_SSE_4_1,
     AWS_CPU_FEATURE_SSE_4_2,
+    AWS_CPU_FEATURE_SSSE_3,
     AWS_CPU_FEATURE_AVX2,
     AWS_CPU_FEATURE_AVX512,
     AWS_CPU_FEATURE_ARM_CRC,
diff --git a/source/arch/intel/cpuid.c b/source/arch/intel/cpuid.c
index e50fa2cdf..060883e71 100644
--- a/source/arch/intel/cpuid.c
+++ b/source/arch/intel/cpuid.c
@@ -36,6 +36,7 @@ static void s_cache_cpu_features(void) {
     }
     aws_run_cpuid(0x1, 0x0, abcd);
     s_cpu_features[AWS_CPU_FEATURE_CLMUL] = abcd[2] & (1 << 1);    /* pclmulqdq = ECX[bit 1] */
+    s_cpu_features[AWS_CPU_FEATURE_SSSE_3] = abcd[2] & (1 << 9);   /* ssse3 = ECX[bit 9] */
     s_cpu_features[AWS_CPU_FEATURE_SSE_4_1] = abcd[2] & (1 << 19); /* sse4.1 = ECX[bit 19] */
     s_cpu_features[AWS_CPU_FEATURE_SSE_4_2] = abcd[2] & (1 << 20); /* sse4.2 = ECX[bit 20] */
 
diff --git a/tests/cpuid_test.c b/tests/cpuid_test.c
index b189a80e7..cba21f9ca 100644
--- a/tests/cpuid_test.c
+++ b/tests/cpuid_test.c
@@ -21,6 +21,7 @@ static int s_cpuid_test_fn(struct aws_allocator *allocator, void *ctx) {
     (void)ctx;
     /* TODO: make sure those check returns the expected value. */
     aws_cpu_has_feature(AWS_CPU_FEATURE_CLMUL);
+    aws_cpu_has_feature(AWS_CPU_FEATURE_SSSE_3);
     aws_cpu_has_feature(AWS_CPU_FEATURE_SSE_4_1);
     aws_cpu_has_feature(AWS_CPU_FEATURE_SSE_4_2);
     aws_cpu_has_feature(AWS_CPU_FEATURE_AVX2);