diff --git a/src/lib/openjp2/j2k.c b/src/lib/openjp2/j2k.c
index 6e9cf8ce..28c7513f 100644
--- a/src/lib/openjp2/j2k.c
+++ b/src/lib/openjp2/j2k.c
@@ -4094,7 +4094,12 @@ static OPJ_BOOL opj_j2k_merge_ppt(opj_tcp_t *p_tcp, opj_event_mgr_t * p_manager)
     /* preconditions */
     assert(p_tcp != 00);
     assert(p_manager != 00);
-    assert(p_tcp->ppt_buffer == NULL);
+
+    if (p_tcp->ppt_buffer != NULL) {
+        opj_event_msg(p_manager, EVT_ERROR,
+                      "opj_j2k_merge_ppt() has already been called\n");
+        return OPJ_FALSE;
+    }
 
     if (p_tcp->ppt == 0U) {
         return OPJ_TRUE;
@@ -8845,7 +8850,10 @@ OPJ_BOOL opj_j2k_read_tile_header(opj_j2k_t * p_j2k,
 
     /* Current marker is the EOC marker ?*/
     if (l_current_marker == J2K_MS_EOC) {
-        p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_EOC;
+        if (p_j2k->m_specific_param.m_decoder.m_state != J2K_STATE_EOC) {
+            p_j2k->m_current_tile_number = 0;
+            p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_EOC;
+        }
     }
 
     /* FIXME DOC ???*/
diff --git a/tests/nonregression/md5refs.txt b/tests/nonregression/md5refs.txt
index 903566d6..a33e82a1 100644
--- a/tests/nonregression/md5refs.txt
+++ b/tests/nonregression/md5refs.txt
@@ -316,4 +316,5 @@ ac8f6ab3acc9c692ed7c41bd62a0e1e8  file1.jp2-c0-r1.tif
 fbfcf662b6f7549574b2885490fbcf12  file1.jp2-c0-d10_20_30_40.tif
 fa7382fd8b2e788b28b807e200dd95b9  file1.jp2-c0-t0.tif
 ac8f6ab3acc9c692ed7c41bd62a0e1e8  file1.jp2-c0-t0-r1.tif
-f31bcb01c771f829054cdb013575e86a  issue1043.png
\ No newline at end of file
+f31bcb01c771f829054cdb013575e86a  issue1043.png
+62bc654c830efddf1b23d6e208447dab  tnsot_zero.png
diff --git a/tests/nonregression/test_suite.ctest.in b/tests/nonregression/test_suite.ctest.in
index 9fe4bc0b..4048a410 100644
--- a/tests/nonregression/test_suite.ctest.in
+++ b/tests/nonregression/test_suite.ctest.in
@@ -625,3 +625,8 @@ opj_decompress -i @INPUT_CONF_PATH@/file1.jp2 -o @TEMP_PATH@/file1.jp2-c0-t0-r1.
 !opj_decompress -i @INPUT_CONF_PATH@/file1.jp2 -o @TEMP_PATH@/file1.jp2-c10.tif -c 10
 
 opj_decompress -i @INPUT_NR_PATH@/db11217111510058.jp2 -o @TEMP_PATH@/issue1043.png
+
+opj_decompress -i @INPUT_NR_PATH@/tnsot_zero.jp2 -o @TEMP_PATH@/tnsot_zero.png
+
+# try to decompress file with repeated PPT marker
+!opj_decompress -i @INPUT_NR_PATH@/oss-fuzz2785.jp2 -o @TEMP_PATH@/oss-fuzz2785.png
diff --git a/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.3-i386-Release-3rdP.txt b/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.3-i386-Release-3rdP.txt
index 104a2afc..8e53a623 100644
--- a/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.3-i386-Release-3rdP.txt
+++ b/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.3-i386-Release-3rdP.txt
@@ -45,3 +45,4 @@ NR-DEC-kodak_2layers_lrcp.j2c-31-decode-md5
 NR-DEC-kodak_2layers_lrcp.j2c-32-decode-md5
 NR-DEC-issue135.j2k-68-decode-md5
 NR-DEC-db11217111510058.jp2-306-decode-md5
+NR-DEC-tnsot_zero.jp2-307-decode-md5
diff --git a/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.4-i386-Release-3rdP.txt b/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.4-i386-Release-3rdP.txt
index 104a2afc..8e53a623 100644
--- a/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.4-i386-Release-3rdP.txt
+++ b/tools/travis-ci/knownfailures-Ubuntu12.04-gcc4.6.4-i386-Release-3rdP.txt
@@ -45,3 +45,4 @@ NR-DEC-kodak_2layers_lrcp.j2c-31-decode-md5
 NR-DEC-kodak_2layers_lrcp.j2c-32-decode-md5
 NR-DEC-issue135.j2k-68-decode-md5
 NR-DEC-db11217111510058.jp2-306-decode-md5
+NR-DEC-tnsot_zero.jp2-307-decode-md5
diff --git a/tools/travis-ci/knownfailures-Ubuntu14.04-gcc4.8.4-i386-Release-3rdP.txt b/tools/travis-ci/knownfailures-Ubuntu14.04-gcc4.8.4-i386-Release-3rdP.txt
index 104a2afc..8e53a623 100644
--- a/tools/travis-ci/knownfailures-Ubuntu14.04-gcc4.8.4-i386-Release-3rdP.txt
+++ b/tools/travis-ci/knownfailures-Ubuntu14.04-gcc4.8.4-i386-Release-3rdP.txt
@@ -45,3 +45,4 @@ NR-DEC-kodak_2layers_lrcp.j2c-31-decode-md5
 NR-DEC-kodak_2layers_lrcp.j2c-32-decode-md5
 NR-DEC-issue135.j2k-68-decode-md5
 NR-DEC-db11217111510058.jp2-306-decode-md5
+NR-DEC-tnsot_zero.jp2-307-decode-md5
diff --git a/tools/travis-ci/knownfailures-windows-vs2010-x86-Release-3rdP.txt b/tools/travis-ci/knownfailures-windows-vs2010-x86-Release-3rdP.txt
index 27235010..7850163c 100644
--- a/tools/travis-ci/knownfailures-windows-vs2010-x86-Release-3rdP.txt
+++ b/tools/travis-ci/knownfailures-windows-vs2010-x86-Release-3rdP.txt
@@ -43,3 +43,4 @@ NR-DEC-kodak_2layers_lrcp.j2c-31-decode-md5
 NR-DEC-kodak_2layers_lrcp.j2c-32-decode-md5
 NR-DEC-issue135.j2k-68-decode-md5
 NR-DEC-db11217111510058.jp2-306-decode-md5
+NR-DEC-tnsot_zero.jp2-307-decode-md5