diff --git a/ccmain/pgedit.cpp b/ccmain/pgedit.cpp
index 5e23595422..a59cef168a 100644
--- a/ccmain/pgedit.cpp
+++ b/ccmain/pgedit.cpp
@@ -544,8 +544,7 @@ BOOL8 Tesseract::process_cmd_win_event(                 // UI command semantics
       break;
 
     default:
-      sprintf(msg, "Unrecognised event " INT32FORMAT "(%s)",
-               cmd_event, new_value);
+      sprintf(msg, "Unrecognised event %" PRId32 "(%s)", cmd_event, new_value);
       image_win->AddMessage(msg);
     break;
   }
diff --git a/ccstruct/blobbox.h b/ccstruct/blobbox.h
index b09d82f4da..d56dc2ff08 100644
--- a/ccstruct/blobbox.h
+++ b/ccstruct/blobbox.h
@@ -734,8 +734,8 @@ class TO_BLOCK:public ELIST_LINK
       for (row_it.mark_cycle_pt(); !row_it.cycled_list();
            row_it.forward()) {
         row = row_it.data();
-        tprintf("Row range (%g,%g), para_c=%g, blobcount=" INT32FORMAT
-                "\n", row->min_y(), row->max_y(), row->parallel_c(),
+        tprintf("Row range (%g,%g), para_c=%g, blobcount=%" PRId32 "\n",
+                row->min_y(), row->max_y(), row->parallel_c(),
                 row->blob_list()->length());
       }
     }
diff --git a/ccstruct/pdblock.cpp b/ccstruct/pdblock.cpp
index 4dde3988d0..efac7d518a 100644
--- a/ccstruct/pdblock.cpp
+++ b/ccstruct/pdblock.cpp
@@ -196,7 +196,7 @@ void PDBLK::plot(                //draw outline
     //                      serial,startpt.x(),startpt.y());
     char temp_buff[34];
     #if defined(__UNIX__) || defined(MINGW)
-    sprintf(temp_buff, INT32FORMAT, serial);
+    sprintf(temp_buff, "%" PRId32, serial);
     #else
     ultoa (serial, temp_buff, 10);
     #endif
diff --git a/ccstruct/polyblk.cpp b/ccstruct/polyblk.cpp
index bae881b1ff..4a9e94e435 100644
--- a/ccstruct/polyblk.cpp
+++ b/ccstruct/polyblk.cpp
@@ -254,7 +254,7 @@ void POLY_BLOCK::plot(ScrollView* window, inT32 num) {
     window->TextAttributes("Times", 80, false, false, false);
     char temp_buff[34];
     #if defined(__UNIX__) || defined(MINGW)
-    sprintf(temp_buff, INT32FORMAT, num);
+    sprintf(temp_buff, "%" PRId32, num);
     #else
     ltoa (num, temp_buff, 10);
     #endif