diff --git a/Building-for-Linux.md b/Building-for-Linux.md
index 1415274..2a0184f 100644
--- a/Building-for-Linux.md
+++ b/Building-for-Linux.md
@@ -13,6 +13,12 @@ You'll need to download and install the following to build Citra:
   - Deb: `apt-get install qtbase5-dev libqt5opengl5-dev qtmultimedia5-dev`
   - Arch: `pacman -S qt5`
   - Fedora: `dnf install qt5-qtmultimedia-devel`
+* **Optional dependencies needed for HLE AAC Decoding on Linux**
+  - FDK-AAC
+    * Deb: `apt-get install libfdk-aac-dev`
+    * Arch: `pacman -S libfdk-aac-dev`
+    * Fedora: `dnf install fdk-aac-free-devel`
+  - [FFMPEG](https://ffmpeg.org/download.html#build-linux) 4.0+
 * Compiler: GCC or Clang. You only need one of these two:
   * GCC 7.0+. 
     - Deb: `apt-get install build-essential`
@@ -47,6 +53,8 @@ cmake ../
 make
 sudo make install (optional)
 ```
+- To enable HLE AAC Decoding, use `cmake .. -DENABLE_FFMPEG` instead.
+
 Optionally, you can use "cmake -i .." to adjust various options (e.g. disable the Qt GUI).
 
 **Using clang:**
@@ -70,6 +78,7 @@ cmake .. -DCMAKE_BUILD_TYPE=Release
 make
 sudo make install (optional)
 ```
+- To enable HLE AAC Decoding, use `cmake .. -DCMAKE_BUILD_TYPE=Release -DENABLE_FFMPEG` instead.
 
 ### Building with debug symbols: