diff --git a/README.md b/README.md
index a7f8f6c..cf20a07 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,5 @@ Salty is a simple encryption tool I made during my free time, using libsodium. I
 - -out: Takes an output file. If no file is selected, or set to '-', output is /dev/stdout.
 - -key: Takes a password up to 128 characters in length.
 - -d: Enables decryption mode.
+## Compatibility
+For now, the program has only been tested on Linux with glibc.
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