diff --git a/lib/preprocessor.cpp b/lib/preprocessor.cpp
index b3e5f3865..6b504ed09 100644
--- a/lib/preprocessor.cpp
+++ b/lib/preprocessor.cpp
@@ -411,6 +411,37 @@ static void getConfigs(const simplecpp::TokenList &tokens, std::set<std::string>
             if (isUndefined(config, undefined))
                 config.clear();
 
+            bool ifndef = false;
+            if (cmdtok->str() == "ifndef")
+                ifndef = true;
+            else {
+                const std::vector<std::string> match{"if", "!", "defined", "(", config, ")"};
+                int i = 0;
+                ifndef = true;
+                for (const simplecpp::Token *t = cmdtok; i < match.size(); t = t->next) {
+                    if (!t || t->str() != match[i++]) {
+                        ifndef = false;
+                        break;
+                    }
+                }
+            }
+
+            // include guard..
+            if (ifndef && tok->location.fileIndex > 0) {
+                bool includeGuard = true;
+                for (const simplecpp::Token *t = tok->previous; t; t = t->previous) {
+                    if (t->location.fileIndex == tok->location.fileIndex) {
+                        includeGuard = false;
+                        break;
+                    }
+                }
+                if (includeGuard) {
+                    configs_if.push_back(std::string());
+                    configs_ifndef.push_back(std::string());
+                    continue;
+                }
+            }
+
             configs_if.push_back((cmdtok->str() == "ifndef") ? std::string() : config);
             configs_ifndef.push_back((cmdtok->str() == "ifndef") ? config : std::string());
             ret.insert(cfg(configs_if,userDefines));
diff --git a/test/testpreprocessor.cpp b/test/testpreprocessor.cpp
index a90f85a3b..bdc7fdb41 100644
--- a/test/testpreprocessor.cpp
+++ b/test/testpreprocessor.cpp
@@ -221,6 +221,7 @@ private:
         TEST_CASE(getConfigs7e);
         TEST_CASE(getConfigs8);  // #if A==1  => cfg: A=1
         TEST_CASE(getConfigs10); // #5139
+        TEST_CASE(getConfigs11); // #9832 - include guards
         TEST_CASE(getConfigsError);
 
         TEST_CASE(getConfigsD1);
@@ -2134,6 +2135,16 @@ private:
         ASSERT_EQUALS("\n", getConfigsStr(filedata));
     }
 
+    void getConfigs11() { // #9832 - include guards
+        const char filedata[] = "#file \"test.h\"\n"
+                                "#if !defined(test_h)\n"
+                                "#define test_h\n"
+                                "123\n"
+                                "#endif\n"
+                                "#endfile\n";
+        ASSERT_EQUALS("\n", getConfigsStr(filedata));
+    }
+
     void getConfigsError() {
         const char filedata1[] = "#ifndef X\n"
                                  "#error \"!X\"\n"