diff --git a/plugins/input/gdal/CMakeLists.txt b/plugins/input/gdal/CMakeLists.txt
index 952485f6c..ca0cb4d6f 100644
--- a/plugins/input/gdal/CMakeLists.txt
+++ b/plugins/input/gdal/CMakeLists.txt
@@ -8,7 +8,7 @@ add_library(input-gdal MODULE
 )
 add_library(mapnik::plugin::input::gdal ALIAS input-gdal)
 
-target_include_directories(input-gdal PRIVATE ${GDAL_INCLUDE_DIR})
+target_include_directories(input-gdal PRIVATE ${GDAL_INCLUDE_DIRS})
 target_link_libraries(input-gdal PRIVATE 
     mapnik::core 
     mapnik::mapnik
diff --git a/plugins/input/ogr/CMakeLists.txt b/plugins/input/ogr/CMakeLists.txt
index 577a133dd..599a325a9 100644
--- a/plugins/input/ogr/CMakeLists.txt
+++ b/plugins/input/ogr/CMakeLists.txt
@@ -10,7 +10,7 @@ add_library(input-ogr MODULE
 )
 add_library(mapnik::plugin::input::ogr ALIAS input-ogr)
 
-target_include_directories(input-ogr PRIVATE ${GDAL_INCLUDE_DIR})
+target_include_directories(input-ogr PRIVATE ${GDAL_INCLUDE_DIRS})
 target_link_libraries(input-ogr PRIVATE 
     mapnik::core 
     mapnik::mapnik