diff --git a/src/coreclr/jit/emitriscv64.cpp b/src/coreclr/jit/emitriscv64.cpp
index 790feafff0f926..5fcb77df9a4efe 100644
--- a/src/coreclr/jit/emitriscv64.cpp
+++ b/src/coreclr/jit/emitriscv64.cpp
@@ -1895,7 +1895,9 @@ unsigned emitter::emitOutputCall(const insGroup* ig, BYTE* dst, instrDesc* id)
         }
     }
 
-    return dst - origDst;
+    assert(dst > origDst);
+    assert((dst - origDst) <= UINT_MAX);
+    return (unsigned)(dst - origDst);
 }
 
 void emitter::emitJumpDistBind()