diff --git a/Cargo.toml b/Cargo.toml
index c091ffe1..57ccae09 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,8 +16,9 @@ default = ["window"]
 window = []
 headless = []
 
-[dependencies.gl_common]
+[dependencies]
 gl_common = "*"
+libc = "*"
 
 [build-dependencies]
 gl_generator = "*"