diff --git a/pbs-api-types/Cargo.toml b/pbs-api-types/Cargo.toml
index 50746c79..d295893e 100644
--- a/pbs-api-types/Cargo.toml
+++ b/pbs-api-types/Cargo.toml
@@ -9,7 +9,6 @@ description = "general API type helpers for PBS"
 anyhow = "1.0"
 hex = "0.4.3"
 lazy_static = "1.4"
-openssl = "0.10"
 percent-encoding = "2.1"
 regex = "1.2"
 serde = { version = "1.0", features = ["derive"] }
@@ -21,3 +20,6 @@ proxmox-time = "1.1.1"
 proxmox-uuid = { version = "1.0.0", features = [ "serde" ] }
 
 proxmox-sys = "0.2" # only needed for nodename()??
+
+[target.'cfg(not(target_arch="wasm32"))'.dependencies]
+openssl = "0.10"
diff --git a/pbs-api-types/src/lib.rs b/pbs-api-types/src/lib.rs
index 2ecd5170..56a80313 100644
--- a/pbs-api-types/src/lib.rs
+++ b/pbs-api-types/src/lib.rs
@@ -326,6 +326,7 @@ pub struct RsaPubKeyInfo {
     pub length: usize,
 }
 
+#[cfg(not(target_arch="wasm32"))]
 impl std::convert::TryFrom<openssl::rsa::Rsa<openssl::pkey::Public>> for RsaPubKeyInfo {
     type Error = anyhow::Error;