diff --git a/pkgs/development/libraries/igraph/default.nix b/pkgs/development/libraries/igraph/default.nix
index f8232c35dc01..a39249e9bfb1 100644
--- a/pkgs/development/libraries/igraph/default.nix
+++ b/pkgs/development/libraries/igraph/default.nix
@@ -92,7 +92,10 @@ stdenv.mkDerivation (finalAttrs: {
     cp -r doc "$out/share"
   '';
 
-  postFixup = lib.optionalString stdenv.isDarwin ''
+  postFixup = ''
+    substituteInPlace $dev/lib/cmake/igraph/igraph-targets.cmake \
+      --replace-fail "_IMPORT_PREFIX \"$out\"" "_IMPORT_PREFIX \"$dev\""
+  '' + lib.optionalString stdenv.isDarwin ''
     install_name_tool -change libblas.dylib ${blas}/lib/libblas.dylib $out/lib/libigraph.dylib
   '';