diff --git a/gis/gdal/gdal.SlackBuild b/gis/gdal/gdal.SlackBuild
index 7b3cbf8bf3..4ee6831d03 100644
--- a/gis/gdal/gdal.SlackBuild
+++ b/gis/gdal/gdal.SlackBuild
@@ -82,6 +82,8 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+patch -p2 < $CWD/poppler.patch
+
 # OpenCL, webp, Spatialite and Grass support need special arrangements.
 # Everything else is handled automatically by configure.
 WITHLIST=""
diff --git a/gis/gdal/poppler.patch b/gis/gdal/poppler.patch
new file mode 100644
index 0000000000..208bec000f
--- /dev/null
+++ b/gis/gdal/poppler.patch
@@ -0,0 +1,32 @@
+From 9c09870e374ca21d558101af3f4c09a6164fdfc3 Mon Sep 17 00:00:00 2001
+From: Even Rouault <even.rouault@spatialys.com>
+Date: Sun, 26 Sep 2021 22:49:52 +0200
+Subject: [PATCH] Fix build against Poppler master
+
+---
+ gdal/frmts/pdf/pdfdataset.cpp | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/gdal/frmts/pdf/pdfdataset.cpp b/gdal/frmts/pdf/pdfdataset.cpp
+index 9c4c28a6572..50a8154c756 100644
+--- a/gdal/frmts/pdf/pdfdataset.cpp
++++ b/gdal/frmts/pdf/pdfdataset.cpp
+@@ -5012,7 +5012,7 @@ PDFDataset *PDFDataset::Open( GDALOpenInfo * poOpenInfo )
+ #ifdef HAVE_POPPLER
+   if (bUseLib.test(PDFLIB_POPPLER))
+   {
+-    GooString* poMetadata = poCatalogPoppler->readMetadata();
++    auto poMetadata = poCatalogPoppler->readMetadata();
+     if (poMetadata)
+     {
+ #if (POPPLER_MAJOR_VERSION >= 1 || POPPLER_MINOR_VERSION >= 72)
+@@ -5026,7 +5026,9 @@ PDFDataset *PDFDataset::Open( GDALOpenInfo * poOpenInfo )
+             const char * const apszMDList[2] = { pszContent, nullptr };
+             poDS->SetMetadata(const_cast<char**>(apszMDList), "xml:XMP");
+         }
++#if (POPPLER_MAJOR_VERSION < 21 || (POPPLER_MAJOR_VERSION == 21 && POPPLER_MINOR_VERSION <= 9))
+         delete poMetadata;
++#endif
+     }
+ 
+     /* Read Info object */