diff --git a/DEBIAN/prerm.in b/DEBIAN/prerm.in
index f19ee54882..9c76ec0e65 100644
--- a/DEBIAN/prerm.in
+++ b/DEBIAN/prerm.in
@@ -11,7 +11,7 @@ rm_ldconfig() {
 }
 
 case "$1" in
-  ( remove )
+  ( remove | upgrade )
     rm_ldconfig
   ;;
   ( purge )
diff --git a/inc/ext/DEBIAN/prerm b/inc/ext/DEBIAN/prerm
index 3dbce5a8d1..d0b2598c35 100644
--- a/inc/ext/DEBIAN/prerm
+++ b/inc/ext/DEBIAN/prerm
@@ -7,7 +7,7 @@ rm_pkgconfig() {
 }
 
 case "$1" in
-   remove)
+   remove | upgrade )
        rm_pkgconfig
    ;;
    purge)