diff --git a/src/PIL/_imaging.pyi b/src/PIL/_imaging.pyi
index 893a8b893..04305e807 100644
--- a/src/PIL/_imaging.pyi
+++ b/src/PIL/_imaging.pyi
@@ -32,6 +32,8 @@ def linear_gradient(mode: Mode) -> ImagingCore: ...
 def radial_gradient(mode: Mode) -> ImagingCore: ...
 def wedge(mode: Mode) -> ImagingCore: ...
 
+def clear_cache() -> None: ...
+
 ### FIXME TYPING: Should defaults be included here? they could get out of sync with _imaging.c
 ### FIXME TYPING: Unsure of the default values in some cases.