diff --git a/pkgs/tools/graphics/netpbm/default.nix b/pkgs/tools/graphics/netpbm/default.nix
index dc4b3ce95bbc..c2e85564e66c 100644
--- a/pkgs/tools/graphics/netpbm/default.nix
+++ b/pkgs/tools/graphics/netpbm/default.nix
@@ -6,8 +6,11 @@ stdenv.mkDerivation {
   src = fetchsvn {
     url = https://netpbm.svn.sourceforge.net/svnroot/netpbm/advanced;
     rev = 844;
+    sha256 = "8729e63bb5cc9fd500a68d5aed91fa4b973ebc068e3014b47390ba7b4d85968e";
   };
 
+  NIX_CFLAGS_COMPILE = if stdenv.system == "x86_64-linux" then "-fPIC" else "";
+
   buildInputs = [ flex zlib perl libpng libjpeg libxml2 ];
 
   configurePhase = "cp config.mk.in config.mk";