diff --git a/types/gdal/tsconfig.json b/types/gdal/tsconfig.json
index 3a5bfaf917..5c11132a33 100644
--- a/types/gdal/tsconfig.json
+++ b/types/gdal/tsconfig.json
@@ -7,7 +7,7 @@
         "noImplicitAny": true,
         "noImplicitThis": true,
         "strictNullChecks": true,
-        "strictFunctionTypes": false,
+        "strictFunctionTypes": true,
         "baseUrl": "../",
         "typeRoots": [
             "../"