diff --git a/library/asn1parse.c b/library/asn1parse.c
index 644b43b..e33fdf7 100644
--- a/library/asn1parse.c
+++ b/library/asn1parse.c
@@ -8,7 +8,7 @@
 #include "common.h"
 
 #if defined(MBEDTLS_ASN1_PARSE_C) || defined(MBEDTLS_X509_CREATE_C) || \
-    defined(MBEDTLS_PSA_UTIL_HAVE_ECDSA) || defined(MBEDTLS_PEM_PARSE_C)
+    defined(MBEDTLS_PSA_UTIL_HAVE_ECDSA)
 
 #include "mbedtls/asn1.h"
 #include "mbedtls/platform_util.h"
@@ -74,8 +74,7 @@
 
     return mbedtls_asn1_get_len(p, end, len);
 }
-#endif /* MBEDTLS_ASN1_PARSE_C || MBEDTLS_X509_CREATE_C ||
-          MBEDTLS_PSA_UTIL_HAVE_ECDSA || MBEDTLS_PEM_PARSE_C */
+#endif /* MBEDTLS_ASN1_PARSE_C || MBEDTLS_X509_CREATE_C || MBEDTLS_PSA_UTIL_HAVE_ECDSA */
 
 #if defined(MBEDTLS_ASN1_PARSE_C)
 int mbedtls_asn1_get_bool(unsigned char **p,
diff --git a/library/pem.c b/library/pem.c
index 3f01d3b..48180ee 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -17,7 +17,6 @@
 #include "mbedtls/cipher.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
-#include "mbedtls/asn1.h"
 
 #include <string.h>
 
@@ -466,28 +465,6 @@
             mbedtls_zeroize_and_free(buf, len);
             return ret;
         }
-
-        /*
-         * In RFC1421 PEM is used as container for DER (ASN.1) content so we
-         * can use ASN.1 functions to parse the main SEQUENCE tag and to get its
-         * length.
-         */
-        unsigned char *p = buf;
-        size_t sequence_len;
-        ret = mbedtls_asn1_get_tag(&p, buf + len, &sequence_len,
-                                   MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED);
-        if (ret != 0) {
-            mbedtls_free(buf);
-            return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PEM_INVALID_DATA, ret);
-        }
-        /* Add also the sequence block (tag + len) to the total amount of valid data. */
-        sequence_len += (p - buf);
-
-        /* Ensure that the reported SEQUENCE length matches the data len (i.e. no
-         * trailing garbage data). */
-        if (len != sequence_len) {
-            return MBEDTLS_ERR_PEM_BAD_INPUT_DATA;
-        }
 #else
         mbedtls_zeroize_and_free(buf, len);
         return MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE;