diff --git a/programs/dibio.c b/programs/dibio.c
index fddbc9e57..f6757dd34 100644
--- a/programs/dibio.c
+++ b/programs/dibio.c
@@ -128,8 +128,11 @@ static int DiB_loadFiles(
     while ( nbSamplesLoaded < sstSize && fileIndex < nbFiles ) {
         size_t fileDataLoaded;
         S64 const fileSize = DiB_getFileSize(fileNamesTable[fileIndex]);
-        if (fileSize <= 0) /* skip if zero-size or file error */
+        if (fileSize <= 0) {
+            /* skip if zero-size or file error */
+            ++fileIndex;
             continue;
+        }
 
         f = fopen( fileNamesTable[fileIndex], "rb");
         if (f == NULL)
diff --git a/tests/cli-tests/dict-builder/empty-input.sh b/tests/cli-tests/dict-builder/empty-input.sh
new file mode 100755
index 000000000..b500bfebd
--- /dev/null
+++ b/tests/cli-tests/dict-builder/empty-input.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+set -e
+for i in $(seq 50); do
+    datagen -s$i > file$i
+done
+touch empty
+
+set -v
+zstd -q --train empty file*
diff --git a/tests/cli-tests/dict-builder/empty-input.sh.stderr.exact b/tests/cli-tests/dict-builder/empty-input.sh.stderr.exact
new file mode 100644
index 000000000..2747e766c
--- /dev/null
+++ b/tests/cli-tests/dict-builder/empty-input.sh.stderr.exact
@@ -0,0 +1 @@
+zstd -q --train empty file*