diff --git a/pkgs/applications/science/electronics/simulide/default.nix b/pkgs/applications/science/electronics/simulide/default.nix
index 613ec21dbd96..6ba83bb65fdd 100644
--- a/pkgs/applications/science/electronics/simulide/default.nix
+++ b/pkgs/applications/science/electronics/simulide/default.nix
@@ -12,9 +12,8 @@ let
   generic =
     { version
     , release
-    , branch
     , rev
-    , sha256
+    , src
     , extraPostPatch ? ""
     , extraBuildInputs ? [ ]
     , iconPath ? "resources/icons/simulide.png"
@@ -26,11 +25,7 @@ let
     mkDerivation {
       pname = "simulide";
       version = "${version}-${release}";
-
-      src = fetchbzr {
-        url = "https://code.launchpad.net/~arcachofo/simulide/${branch}";
-        inherit rev sha256;
-      };
+      inherit src;
 
       postPatch = ''
         sed -i resources/simulide.desktop \
@@ -91,12 +86,16 @@ let
     };
 in
 {
-  simulide_0_4_15 = generic {
+  simulide_0_4_15 = generic rec {
     version = "0.4.15";
     release = "SR10";
-    branch = "simulide_0.4.14"; # the branch name does not mach the version for some reason
     rev = "291";
-    sha256 = "sha256-BBoZr/S2pif0Jft5wrem8y00dXl08jq3kFiIUtOr3LM=";
+    src = fetchbzr {
+      # the branch name does not mach the version for some reason
+      url = "https://code.launchpad.net/~arcachofo/simulide/simulide_0.4.14";
+      sha256 = "sha256-BBoZr/S2pif0Jft5wrem8y00dXl08jq3kFiIUtOr3LM=";
+      inherit rev;
+    };
     extraPostPatch = ''
       # GCC 13 needs the <cstdint> header explicitly included
       sed -i src/gpsim/value.h -e '1i #include <cstdint>'
@@ -110,20 +109,26 @@ in
     '';
   };
 
-  simulide_1_0_0 = generic {
+  simulide_1_0_0 = generic rec {
     version = "1.0.0";
     release = "SR2";
-    branch = "1.0.0";
     rev = "1449";
-    sha256 = "sha256-rJWZvnjVzaKXU2ktbde1w8LSNvu0jWkDIk4dq2l7t5g=";
+    src = fetchbzr {
+      url = "https://code.launchpad.net/~arcachofo/simulide/1.0.0";
+      sha256 = "sha256-rJWZvnjVzaKXU2ktbde1w8LSNvu0jWkDIk4dq2l7t5g=";
+      inherit rev;
+    };
     extraBuildInputs = [ qtscript ];
   };
 
-  simulide_1_1_0 = generic {
+  simulide_1_1_0 = generic rec {
     version = "1.1.0";
     release = "SR0";
-    branch = "1.1.0";
     rev = "1917";
-    sha256 = "sha256-qNBaGWl89Le9uC1VFK+xYhrLzIvOIWjkQbutnrAmZ2M=";
+    src = fetchbzr {
+      url = "https://code.launchpad.net/~arcachofo/simulide/1.1.0";
+      sha256 = "sha256-qNBaGWl89Le9uC1VFK+xYhrLzIvOIWjkQbutnrAmZ2M=";
+      inherit rev;
+    };
   };
 }