diff --git a/src/zlevis-decrypt b/src/zlevis-decrypt
index f079835..a0e9bad 100755
--- a/src/zlevis-decrypt
+++ b/src/zlevis-decrypt
@@ -48,19 +48,19 @@ fi
 
 # Extract required parameters from the JWE header
 if ! hash="$(printf "%s" "$jhd" | jose fmt -j- -Og zlevis -g tpm2 -g hash -Su-)"; then
-    echo "JWE missing required 'hash' header parameter!" >&2
+    echo "JWE missing required 'hash' header parameter" >&2
     exit 1
 fi
 if ! key="$(printf "%s" "$jhd" | jose fmt -j- -Og zlevis -g tpm2 -g key -Su-)"; then
-    echo "JWE missing required 'key' header parameter!" >&2
+    echo "JWE missing required 'key' header parameter" >&2
     exit 1
 fi
 if ! jwk_pub="$(printf "%s" "$jhd" | jose fmt -j- -Og zlevis -g tpm2 -g jwk_pub -Su-)"; then
-    echo "JWE missing required 'jwk_pub' header parameter!" >&2
+    echo "JWE missing required 'jwk_pub' header parameter" >&2
     exit 1
 fi
 if ! jwk_priv="$(printf "%s" "$jhd" | jose fmt -j- -Og zlevis -g tpm2 -g jwk_priv -Su-)"; then
-    echo "JWE missing required 'jwk_priv' header parameter!" >&2
+    echo "JWE missing required 'jwk_priv' header parameter" >&2
     exit 1
 fi