diff --git a/src/lib.rs b/src/lib.rs
index 0112f87..09a2dd6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -123,8 +123,8 @@ pub fn crate_name(orig_name: &str) -> Result<FoundCrate, Error> {
 }
 
 /// Make sure that the given crate name is a valid rust identifier.
-fn sanitize_crate_name(name: String) -> String {
-    name.replace("-", "_")
+fn sanitize_crate_name<S: AsRef<str>>(name: S) -> String {
+    name.as_ref().replace("-", "_")
 }
 
 /// Open the given `Cargo.toml` and parse it into a hashmap.
@@ -156,7 +156,13 @@ fn extract_crate_name(
     if let Some(toml::Value::Table(t)) = cargo_toml.get("package") {
         if let Some(toml::Value::String(s)) = t.get("name") {
             if s == orig_name {
-                return Ok(FoundCrate::Itself);
+                if std::env::var_os("CARGO_TARGET_TMPDIR").is_none() {
+                    // We're running for a library/binary crate
+                    return Ok(FoundCrate::Itself);
+                } else {
+                    // We're running for an integration test
+                    return Ok(FoundCrate::Name(sanitize_crate_name(orig_name)));
+                }
             }
         }
     }