diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c
index d8eb18e39..5a25efdee 100644
--- a/libs/vkd3d-shader/hlsl.c
+++ b/libs/vkd3d-shader/hlsl.c
@@ -3788,8 +3788,9 @@ static void dump_ir_expr(struct vkd3d_string_buffer *buffer, const struct hlsl_i
     vkd3d_string_buffer_printf(buffer, "%s (", debug_hlsl_expr_op(expr->op));
     for (i = 0; i < HLSL_MAX_OPERANDS && expr->operands[i].node; ++i)
     {
+        if (i)
+            vkd3d_string_buffer_printf(buffer, " ");
         dump_src(buffer, &expr->operands[i]);
-        vkd3d_string_buffer_printf(buffer, " ");
     }
     vkd3d_string_buffer_printf(buffer, ")");
 }