diff --git a/libafl_qemu/libafl_qemu_build/src/lib.rs b/libafl_qemu/libafl_qemu_build/src/lib.rs
index 5845321f3a..c5828c5fa6 100644
--- a/libafl_qemu/libafl_qemu_build/src/lib.rs
+++ b/libafl_qemu/libafl_qemu_build/src/lib.rs
@@ -107,11 +107,13 @@ fn find_llvm_config() -> Result<String, String> {
         if let Some(ver) = find_llvm_version("llvm-config".to_owned()) {
             if ver >= rustc_llvm_ver {
                 return Ok("llvm-config".to_owned());
+            } else {
+                return Err(format!("Version of llvm-config is {ver} but needs to be at least rustc's version({rustc_llvm_ver})"));
             }
         }
     }
 
-    Err("could not find llvm-config".to_owned())
+    Err("Could not find llvm-config".to_owned())
 }
 
 fn exec_llvm_config(llvm_config: String, args: &[&str]) -> String {
@@ -165,7 +167,7 @@ fn qemu_bindgen_clang_args(
     is_usermode: bool,
 ) -> Vec<String> {
     if env::var("LLVM_CONFIG_PATH").is_err() {
-        let found = find_llvm_config().expect("Cannot find a suitable llvm-config, it must be a version equal or greater than the rustc LLVM version");
+        let found = find_llvm_config().expect("Cannot find a suitable llvm-config, it must be a version equal or greater than the rustc LLVM version. Try specifying LLVM_CONFIG_PATH.");
         env::set_var("LLVM_CONFIG_PATH", found);
     }