diff --git a/django/contrib/gis/gdal/libgdal.py b/django/contrib/gis/gdal/libgdal.py
index 05b5732..91fafee 100644
--- a/django/contrib/gis/gdal/libgdal.py
+++ b/django/contrib/gis/gdal/libgdal.py
@@ -14,7 +14,7 @@ try:
     from django.conf import settings
     lib_path = settings.GDAL_LIBRARY_PATH
 except (AttributeError, ImportError, ImproperlyConfigured, OSError):
-    lib_path = None
+    lib_path = ""@gdal@/lib/libgdal@extension@"
 
 if lib_path:
     lib_names = None
diff --git a/django/contrib/gis/geos/libgeos.py b/django/contrib/gis/geos/libgeos.py
index 2cdb5d3..fac2d04 100644
--- a/django/contrib/gis/geos/libgeos.py
+++ b/django/contrib/gis/geos/libgeos.py
@@ -24,7 +24,7 @@ def load_geos():
         from django.conf import settings
         lib_path = settings.GEOS_LIBRARY_PATH
     except (AttributeError, ImportError, ImproperlyConfigured, OSError):
-        lib_path = None
+        lib_path = "@geos@/lib/libgeos_c@extension@"
 
     # Setting the appropriate names for the GEOS-C library.
     if lib_path: