diff --git a/src/detect-filemagic.c b/src/detect-filemagic.c
index 49b0d125fd..de7e8cf9f5 100644
--- a/src/detect-filemagic.c
+++ b/src/detect-filemagic.c
@@ -554,6 +554,7 @@ static void PrefilterTxFilemagic(DetectEngineThreadCtx *det_ctx,
                         &det_ctx->mtcu, &det_ctx->pmq,
                         buffer->inspect, buffer->inspect_len);
             }
+            local_file_id++;
         }
     }
 }
diff --git a/src/detect-filename.c b/src/detect-filename.c
index a5ac0b2ae0..a19424758f 100644
--- a/src/detect-filename.c
+++ b/src/detect-filename.c
@@ -460,6 +460,7 @@ static void PrefilterTxFilename(DetectEngineThreadCtx *det_ctx,
                         &det_ctx->mtcu, &det_ctx->pmq,
                         buffer->inspect, buffer->inspect_len);
             }
+            local_file_id++;
         }
     }
 }