diff --git a/pkgs/by-name/mu/musly/0005-Fix-minilog-get.patch b/pkgs/by-name/mu/musly/0005-Fix-minilog-get.patch
new file mode 100644
index 000000000000..701124a097fc
--- /dev/null
+++ b/pkgs/by-name/mu/musly/0005-Fix-minilog-get.patch
@@ -0,0 +1,13 @@
+diff --git a/include/minilog.h b/include/minilog.h
+index b1c387e..9390a6e 100644
+--- a/include/minilog.h
++++ b/include/minilog.h
+@@ -198,7 +198,7 @@ Log<T>::from_string(
+     else if (level == "NONE")
+         return logNONE;
+     else {
+-        Log<T>().Get(logWARNING) << "Unknown logging level '" << level
++        Log<T>().get(logWARNING) << "Unknown logging level '" << level
+                 << "'. Using INFO level as default.";
+         return logINFO;
+     }
diff --git a/pkgs/by-name/mu/musly/package.nix b/pkgs/by-name/mu/musly/package.nix
index 07cb806a21f0..cf3ed188ea69 100644
--- a/pkgs/by-name/mu/musly/package.nix
+++ b/pkgs/by-name/mu/musly/package.nix
@@ -37,6 +37,10 @@ stdenv.mkDerivation {
     ./0002-Fix-build-with-C-17.patch
     ./0003-Modernize-CMake-build-system.patch
     ./0004-Use-pkg-config-to-find-libresample-and-kissfft.patch
+    # Fix build with gcc15: minilog.h uses Get() instead of get() in unused
+    # template code
+    # https://github.com/dominikschnitzer/musly/pull/55
+    ./0005-Fix-minilog-get.patch
   ];
 
   nativeBuildInputs = [