diff --git a/core/src/syscall/hint.rs b/core/src/syscall/hint.rs
index d0fb51d8be..334cd8ad06 100644
--- a/core/src/syscall/hint.rs
+++ b/core/src/syscall/hint.rs
@@ -12,11 +12,7 @@ impl SyscallHintLen {
 impl Syscall for SyscallHintLen {
     fn execute(&self, ctx: &mut SyscallContext, _arg1: u32, _arg2: u32) -> Option<u32> {
         if ctx.rt.state.input_stream_ptr >= ctx.rt.state.input_stream.len() {
-            panic!(
-                "failed reading stdin due to insufficient input data: input_stream_ptr={}, input_stream_len={}",
-                ctx.rt.state.input_stream_ptr,
-                ctx.rt.state.input_stream.len()
-            );
+            panic!("not enough vecs in hint input stream");
         }
         Some(ctx.rt.state.input_stream[ctx.rt.state.input_stream_ptr].len() as u32)
     }
@@ -34,11 +30,7 @@ impl SyscallHintRead {
 impl Syscall for SyscallHintRead {
     fn execute(&self, ctx: &mut SyscallContext, ptr: u32, len: u32) -> Option<u32> {
         if ctx.rt.state.input_stream_ptr >= ctx.rt.state.input_stream.len() {
-            panic!(
-                "failed reading stdin due to insufficient input data: input_stream_ptr={}, input_stream_len={}",
-                ctx.rt.state.input_stream_ptr,
-                ctx.rt.state.input_stream.len()
-            );
+            panic!("not enough vecs in hint input stream");
         }
         let vec = &ctx.rt.state.input_stream[ctx.rt.state.input_stream_ptr];
         ctx.rt.state.input_stream_ptr += 1;