diff --git a/src/test.rs b/src/test.rs
index 53b48d5..8181e2a 100644
--- a/src/test.rs
+++ b/src/test.rs
@@ -172,7 +172,9 @@ fn toml_pkg_config_err_version(
                 output: _,
                 name: _,
             } => {
-                let s = format!(">= {}\"", expected_version);
+                let s = format!(">= {}", expected_version);
+                // remove trailing '"", if any
+                let cmd = cmd.strip_suffix('"').unwrap_or(&cmd);
                 assert!(cmd.ends_with(&s));
             }
             _ => panic!("Wrong pkg-config error type"),