diff --git a/tests/suites/test_suite_mpi.data b/tests/suites/test_suite_mpi.data
index 95b4dcc09548..8bb5e772c6f4 100644
--- a/tests/suites/test_suite_mpi.data
+++ b/tests/suites/test_suite_mpi.data
@@ -89,10 +89,10 @@ Test mpi_write_string #10 (Negative hex with odd number of digits)
 mpi_read_write_string:16:"-1":16:"":3:0:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
 
 Base test mbedtls_mpi_read_binary #1
-mbedtls_mpi_read_binary:"0941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424":"0941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424"
+mbedtls_mpi_read_binary:"0941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424":"0941379D00FED1491FE15DF284DFDE4A142F68AA8D412023195CEE66883E6290FFE703F4EA5963BF212713CEE46B107C09182B5EDCD955ADAC418BF4918E2889AF48E1099D513830CEC85C26AC1E158B52620E33BA8692F893EFBB2F958B4424"
 
 Base test mbedtls_mpi_read_binary_le #1
-mbedtls_mpi_read_binary_le:"0941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424":"24448b952fbbef93f89286ba330e62528b151eac265cc8ce3038519d09e148af89288e91f48b41acad55d9dc5e2b18097c106be4ce132721bf6359eaf403e7ff90623e8866ee5c192320418daa682f144adedf84f25de11f49d1fe009d374109"
+mbedtls_mpi_read_binary_le:"0941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424":"24448B952FBBEF93F89286BA330E62528B151EAC265CC8CE3038519D09E148AF89288E91F48B41ACAD55D9DC5E2B18097C106BE4CE132721BF6359EAF403E7FF90623E8866EE5C192320418DAA682F144ADEDF84F25DE11F49D1FE009D374109"
 
 Base test mbedtls_mpi_write_binary #1
 mbedtls_mpi_write_binary:"941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424":"0941379d00fed1491fe15df284dfde4a142f68aa8d412023195cee66883e6290ffe703f4ea5963bf212713cee46b107c09182b5edcd955adac418bf4918e2889af48e1099d513830cec85c26ac1e158b52620e33ba8692f893efbb2f958b4424":200:0
diff --git a/tests/suites/test_suite_mpi.function b/tests/suites/test_suite_mpi.function
index fba19c7af384..a53d0cb9a5e0 100644
--- a/tests/suites/test_suite_mpi.function
+++ b/tests/suites/test_suite_mpi.function
@@ -404,7 +404,7 @@ void mbedtls_mpi_read_binary( data_t * buf, char * input_A )
     TEST_ASSERT( mbedtls_mpi_read_binary( &X, buf->x, buf->len ) == 0 );
     TEST_ASSERT( sign_is_valid( &X ) );
     TEST_ASSERT( mbedtls_mpi_write_string( &X, 16, str, sizeof( str ), &len ) == 0 );
-    TEST_ASSERT( strcasecmp( (char *) str, input_A ) == 0 );
+    TEST_ASSERT( strcmp( (char *) str, input_A ) == 0 );
 
 exit:
     mbedtls_mpi_free( &X );
@@ -424,7 +424,7 @@ void mbedtls_mpi_read_binary_le( data_t * buf, char * input_A )
     TEST_ASSERT( mbedtls_mpi_read_binary_le( &X, buf->x, buf->len ) == 0 );
     TEST_ASSERT( sign_is_valid( &X ) );
     TEST_ASSERT( mbedtls_mpi_write_string( &X, 16, str, sizeof( str ), &len ) == 0 );
-    TEST_ASSERT( strcasecmp( (char *) str, input_A ) == 0 );
+    TEST_ASSERT( strcmp( (char *) str, input_A ) == 0 );
 
 exit:
     mbedtls_mpi_free( &X );