diff --git a/lib/valueflow.cpp b/lib/valueflow.cpp
index 7dd32bc3c..89ae044fa 100644
--- a/lib/valueflow.cpp
+++ b/lib/valueflow.cpp
@@ -5426,6 +5426,8 @@ static bool isContainerSizeChanged(nonneg int varId, const Token *start, const T
                 break;
             };
         }
+        if (isContainerSizeChangedByFunction(tok))
+            return true;
     }
     return false;
 }
diff --git a/test/testcondition.cpp b/test/testcondition.cpp
index 19b5bcd60..aeec2040a 100644
--- a/test/testcondition.cpp
+++ b/test/testcondition.cpp
@@ -3218,6 +3218,33 @@ private:
         ASSERT_EQUALS("", errout.str());
     }
 
+    void alwaysTrueContainer() {
+        // #9329
+        check("void c1(std::vector<double>&);\n"
+              "void c2(std::vector<double>&);\n"
+              "void foo(int flag) {\n"
+              "    std::vector<double> g;\n"
+              "    if (flag)\n"
+              "        c1(g );\n"
+              "    else\n"
+              "        c2(g );\n"
+              "    if ( !g.empty() )\n"
+              "        return;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+
+        check("void foo(int flag) {\n"
+              "    std::vector<double> g;\n"
+              "    if (flag)\n"
+              "        c1(g );\n"
+              "    else\n"
+              "        c2(g );\n"
+              "    if ( !g.empty() )\n"
+              "        return;\n"
+              "}\n");
+        ASSERT_EQUALS("", errout.str());
+    }
+
     void multiConditionAlwaysTrue() {
         check("void f() {\n"
               "  int val = 0;\n"