diff --git a/src/headers/tomcrypt_private.h b/src/headers/tomcrypt_private.h
index 61a8b2ae8..95a429821 100644
--- a/src/headers/tomcrypt_private.h
+++ b/src/headers/tomcrypt_private.h
@@ -347,7 +347,7 @@ struct get_char {
       FILE *f;
 #endif /* LTC_NO_FILE */
       struct bufp buf;
-   };
+   } data;
    struct str unget_buf;
    char unget_buf_[LTC_PEM_DECODE_BUFSZ];
 };
diff --git a/src/misc/pem/pem_pkcs.c b/src/misc/pem/pem_pkcs.c
index fdc136182..47ddd179a 100644
--- a/src/misc/pem/pem_pkcs.c
+++ b/src/misc/pem/pem_pkcs.c
@@ -272,7 +272,7 @@ int pem_decode_pkcs_filehandle(FILE *f, ltc_pka_key *k, const password_ctx *pw_c
    LTC_ARGCHK(f != NULL);
    LTC_ARGCHK(k != NULL);
    {
-      struct get_char g = { .get = pem_get_char_from_file, .f = f };
+      struct get_char g = { .get = pem_get_char_from_file, .data.f = f };
       return s_decode(&g, k, pw_ctx);
    }
 }
@@ -284,7 +284,7 @@ int pem_decode_pkcs(const void *buf, unsigned long len, ltc_pka_key *k, const pa
    LTC_ARGCHK(len != 0);
    LTC_ARGCHK(k != NULL);
    {
-      struct get_char g = { .get = pem_get_char_from_buf, SET_BUFP(.buf, buf, len) };
+      struct get_char g = { .get = pem_get_char_from_buf, SET_BUFP(.data.buf, buf, len) };
       return s_decode(&g, k, pw_ctx);
    }
 }
diff --git a/src/misc/pem/pem_read.c b/src/misc/pem/pem_read.c
index d9ebb9cc5..1ba4f1c3e 100644
--- a/src/misc/pem/pem_read.c
+++ b/src/misc/pem/pem_read.c
@@ -20,18 +20,18 @@ extern const unsigned long pem_dek_infos_num;
 #ifndef LTC_NO_FILE
 int pem_get_char_from_file(struct get_char *g)
 {
-   return getc(g->f);
+   return getc(g->data.f);
 }
 #endif /* LTC_NO_FILE */
 
 int pem_get_char_from_buf(struct get_char *g)
 {
    int ret;
-   if (g->buf.work == g->buf.end) {
+   if (g->data.buf.work == g->data.buf.end) {
       return -1;
    }
-   ret = *g->buf.work;
-   g->buf.work++;
+   ret = *g->data.buf.work;
+   g->data.buf.work++;
    return ret;
 }
 
diff --git a/src/misc/pem/pem_ssh.c b/src/misc/pem/pem_ssh.c
index 123a584ca..00ae44805 100644
--- a/src/misc/pem/pem_ssh.c
+++ b/src/misc/pem/pem_ssh.c
@@ -801,7 +801,7 @@ int pem_decode_openssh_filehandle(FILE *f, ltc_pka_key *k, const password_ctx *p
    LTC_ARGCHK(f != NULL);
    LTC_ARGCHK(k != NULL);
    {
-      struct get_char g = { .get = pem_get_char_from_file, .f = f };
+      struct get_char g = { .get = pem_get_char_from_file, .data.f = f };
       return s_decode_openssh(&g, k, pw_ctx);
    }
 }
@@ -839,7 +839,7 @@ int pem_decode_openssh(const void *buf, unsigned long len, ltc_pka_key *k, const
    LTC_ARGCHK(len != 0);
    LTC_ARGCHK(k != NULL);
    {
-      struct get_char g = { .get = pem_get_char_from_buf, SET_BUFP(.buf, buf, len) };
+      struct get_char g = { .get = pem_get_char_from_buf, SET_BUFP(.data.buf, buf, len) };
       return s_decode_openssh(&g, k, pw_ctx);
    }
 }