diff --git a/lib/http.c b/lib/http.c
index 926d51f2b..2d0e78af3 100644
--- a/lib/http.c
+++ b/lib/http.c
@@ -2894,6 +2894,8 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
         }
         if(result)
           return result;
+        /* Make sure the progress information is accurate */
+        Curl_pgrsSetUploadSize(data, postsize);
       }
       else {
         /* A huge POST coming up, do data separate from the request */
diff --git a/tests/data/Makefile.am b/tests/data/Makefile.am
index 61b1b4807..0a38477bc 100644
--- a/tests/data/Makefile.am
+++ b/tests/data/Makefile.am
@@ -67,7 +67,7 @@ EXTRA_DIST = test1 test108 test117 test127 test20 test27 test34 test46	   \
  test312 test1105 test565 test800 test1106 test801 test566 test802 test803 \
  test1107 test1108 test1109 test1110 test1111 test1112 test129 test567     \
  test568 test569 test570 test571 test572 test804 test805 test806 test807 \
- test573 test313 test1115
+ test573 test313 test1115 test578
 
 filecheck:
 	@mkdir test-place; \
diff --git a/tests/data/test578 b/tests/data/test578
new file mode 100644
index 000000000..0b6a43731
--- /dev/null
+++ b/tests/data/test578
@@ -0,0 +1,52 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP POST
+</keywords>
+</info>
+#
+# Server-side
+<reply name="1">
+<data mode="text">
+HTTP/1.1 200 OK
+Date: Thu, 09 Nov 2010 14:49:00 GMT
+Server: test-server/fake
+Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
+ETag: "21025-dc7-39462498"
+Accept-Ranges: bytes
+Content-Length: 6
+Connection: close
+Content-Type: text/html
+Funny-head: yesyes
+
+-foo-
+</data>
+</reply>
+
+# Client-side
+<client>
+<server>
+http
+</server>
+# tool is what to use instead of 'curl'
+<tool>
+lib578
+</tool>
+
+ <name>
+HTTP POST lower than MAX_INITIAL_POST_SIZE with progress callback
+ </name>
+ <command>
+http://%HOSTIP:%HTTPPORT/500 log/ip578
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<file name="log/ip578" mode="text">
+PASSED, UL data matched data size
+</file>
+</verify>
+</testcase>
diff --git a/tests/libtest/Makefile.inc b/tests/libtest/Makefile.inc
index ce230c12a..a0d73b8ef 100644
--- a/tests/libtest/Makefile.inc
+++ b/tests/libtest/Makefile.inc
@@ -8,7 +8,7 @@ SUPPORTFILES = first.c test.h
 noinst_PROGRAMS = lib500 lib501 lib502 lib503 lib504 lib505 lib506	\
   lib507 lib508 lib510 lib511 lib512 lib513 lib514 lib515 lib516	\
   lib517 lib518 lib519 lib520 lib521 lib523 lib524 lib525 lib526 lib527	\
-  lib574 lib575 lib576 lib577 \
+  lib574 lib575 lib576 lib577 lib578 \
   lib529 lib530 lib532 lib533 lib536 lib537 lib540 lib541 lib542 lib543 \
   lib544 lib545 lib547 lib548 lib549 lib552 lib553 lib554 lib555 lib556 \
   lib539 lib557 lib558 lib559 lib560 lib562 lib564 lib565 lib566 lib567 \
@@ -160,3 +160,5 @@ lib571_SOURCES = lib571.c $(SUPPORTFILES)
 lib572_SOURCES = lib572.c $(SUPPORTFILES)
 
 lib573_SOURCES = lib573.c $(SUPPORTFILES) $(TESTUTIL)
+
+lib578_SOURCES = lib578.c $(SUPPORTFILES)
diff --git a/tests/libtest/lib578.c b/tests/libtest/lib578.c
new file mode 100644
index 000000000..2efb003ae
--- /dev/null
+++ b/tests/libtest/lib578.c
@@ -0,0 +1,90 @@
+/*****************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ */
+
+#include "test.h"
+
+#include "memdebug.h"
+
+/* The size of data should be kept below MAX_INITIAL_POST_SIZE! */
+static char data[]="this is a short string.\n";
+
+static size_t data_size = sizeof(data) / sizeof(char);
+
+static int progress_callback(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
+{
+  FILE *moo = fopen(libtest_arg2, "wb");
+
+  (void)clientp; /* UNUSED */
+  (void)dltotal; /* UNUSED */
+  (void)dlnow; /* UNUSED */
+
+  if(moo) {
+    if ((size_t)ultotal == data_size && (size_t)ulnow == data_size)
+      fprintf(moo, "PASSED, UL data matched data size\n");
+    else
+      fprintf(moo, "Progress callback called with UL %f out of %f\n", ulnow, ultotal);
+    fclose(moo);
+  }
+  return 0;
+}
+
+int test(char *URL)
+{
+  CURL *curl;
+  CURLcode res=CURLE_OK;
+
+  if (curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
+    fprintf(stderr, "curl_global_init() failed\n");
+    return TEST_ERR_MAJOR_BAD;
+  }
+
+  if ((curl = curl_easy_init()) == NULL) {
+    fprintf(stderr, "curl_easy_init() failed\n");
+    curl_global_cleanup();
+    return TEST_ERR_MAJOR_BAD;
+  }
+
+  /* First set the URL that is about to receive our POST. */
+  test_setopt(curl, CURLOPT_URL, URL);
+
+  /* Now specify we want to POST data */
+  test_setopt(curl, CURLOPT_POST, 1L);
+
+#ifdef CURL_DOES_CONVERSIONS
+  /* Convert the POST data to ASCII */
+  test_setopt(curl, CURLOPT_TRANSFERTEXT, 1L);
+#endif
+
+  /* Set the expected POST size */
+  test_setopt(curl, CURLOPT_POSTFIELDSIZE, data_size);
+  test_setopt(curl, CURLOPT_POSTFIELDS, data);
+
+  /* we want to use our own progress function */
+  test_setopt(curl, CURLOPT_NOPROGRESS, 0L);
+  test_setopt(curl, CURLOPT_PROGRESSFUNCTION, progress_callback);
+
+  /* pointer to pass to our read function */
+
+  /* get verbose debug output please */
+  test_setopt(curl, CURLOPT_VERBOSE, 1L);
+
+  /* include headers in the output */
+  test_setopt(curl, CURLOPT_HEADER, 1L);
+
+  /* Perform the request, res will get the return code */
+  res = curl_easy_perform(curl);
+
+test_cleanup:
+
+  /* always cleanup */
+  curl_easy_cleanup(curl);
+  curl_global_cleanup();
+
+  return res;
+}