diff --git a/src/pki_crypto.c b/src/pki_crypto.c
index 7e10d8c6..3fd4f2a6 100644
--- a/src/pki_crypto.c
+++ b/src/pki_crypto.c
@@ -97,7 +97,7 @@ static int pki_key_ecdsa_to_nid(EC_KEY *k)
 
 static enum ssh_keytypes_e pki_key_ecdsa_to_key_type(EC_KEY *k)
 {
-    static int nid;
+    int nid;
 
     nid = pki_key_ecdsa_to_nid(k);
 
diff --git a/src/pki_gcrypt.c b/src/pki_gcrypt.c
index 5470ce85..ac17e105 100644
--- a/src/pki_gcrypt.c
+++ b/src/pki_gcrypt.c
@@ -741,7 +741,7 @@ static int pki_key_ecdsa_to_nid(gcry_sexp_t k)
 
 static enum ssh_keytypes_e pki_key_ecdsa_to_key_type(gcry_sexp_t k)
 {
-    static int nid;
+    int nid;
 
     nid = pki_key_ecdsa_to_nid(k);
 
diff --git a/src/pki_mbedcrypto.c b/src/pki_mbedcrypto.c
index b0fd82ef..e82d2ff9 100644
--- a/src/pki_mbedcrypto.c
+++ b/src/pki_mbedcrypto.c
@@ -64,7 +64,7 @@ static int pki_key_ecdsa_to_nid(mbedtls_ecdsa_context *ecdsa)
 
 static enum ssh_keytypes_e pki_key_ecdsa_to_key_type(mbedtls_ecdsa_context *ecdsa)
 {
-    static int nid;
+    int nid;
 
     nid = pki_key_ecdsa_to_nid(ecdsa);