diff --git a/anjali-old-lipi/default.nix b/anjali-old-lipi/default.nix
index 79ebdc6..bdb5f0b 100644
--- a/anjali-old-lipi/default.nix
+++ b/anjali-old-lipi/default.nix
@@ -11,7 +11,11 @@ pkgs.stdenv.mkDerivation {
   };
 
   installPhase = ''
-    install -Dm444 -t $out/share/fonts/truetype $src/*.ttf
+    runHook preInstall
+
+    install -D -m444 -t $out/share/fonts/truetype $src/*.ttf
+
+    runHook postInstall
   '';
 
   meta = with pkgs.lib; {
diff --git a/chilanka/default.nix b/chilanka/default.nix
index 8eb59ee..d186d9a 100644
--- a/chilanka/default.nix
+++ b/chilanka/default.nix
@@ -11,7 +11,11 @@ pkgs.stdenv.mkDerivation {
   };
 
   installPhase = ''
-    install -Dm444 -t $out/share/fonts/truetype $src/*.ttf
+    runHook preInstall
+
+    install -D -m444 -t $out/share/fonts/truetype $src/*.ttf
+
+    runHook postInstall
   '';
 
   meta = with pkgs.lib; {
diff --git a/manjari/default.nix b/manjari/default.nix
index 798c3f7..7b1594c 100644
--- a/manjari/default.nix
+++ b/manjari/default.nix
@@ -11,7 +11,11 @@ pkgs.stdenv.mkDerivation {
   };
 
   installPhase = ''
-    install -Dm444 -t $out/share/fonts/opentype $src/*.otf
+    runHook preInstall
+
+    install -D -m444 -t $out/share/fonts/opentype $src/*.otf
+
+    runHook postInstall
   '';
 
   meta = with pkgs.lib; {