diff --git a/src/preprocessor.cpp b/src/preprocessor.cpp
index ec88cf421..54303fe71 100644
--- a/src/preprocessor.cpp
+++ b/src/preprocessor.cpp
@@ -729,6 +729,26 @@ std::string Preprocessor::expandMacros(std::string code)
                             break;
                         }
                     }
+                    else if (code[pos2] == '\"' || code[pos2] == '\'')
+                    {
+                        par += code[pos2];
+                        char ch = code[pos2];
+                        ++pos2;
+                        while (pos2 < code.length() && code[pos2] != ch)
+                        {
+                            par += code[pos2];
+                            if (code[pos2] == '\\')
+                            {
+                                par += code[pos2];
+                                ++pos2;
+                            }
+                            ++pos2;
+                        }
+                        if (pos2 == code.length())
+                            break;
+                        par += code[pos2];
+                        continue;
+                    }
 
                     if (parlevel == 1 && code[pos2] == ',')
                     {
diff --git a/test/testpreprocessor.cpp b/test/testpreprocessor.cpp
index ed3002fe7..39a37d3eb 100644
--- a/test/testpreprocessor.cpp
+++ b/test/testpreprocessor.cpp
@@ -74,6 +74,7 @@ private:
         TEST_CASE(macro_simple4);
         TEST_CASE(macro_simple5);
         TEST_CASE(macro_simple6);
+        TEST_CASE(macro_simple7);
         TEST_CASE(macro_mismatch);
         TEST_CASE(string1);
         TEST_CASE(string2);
@@ -479,6 +480,13 @@ private:
         ASSERT_EQUALS("\n(a+b+c)", Preprocessor::expandMacros(filedata));
     }
 
+    void macro_simple7()
+    {
+        const char filedata[] = "#define ABC(str) str\n"
+                                "ABC(\"(\")";
+        ASSERT_EQUALS("\n\"(\"", Preprocessor::expandMacros(filedata));
+    }
+
     void macro_mismatch()
     {
         const char filedata[] = "#define AAA(aa,bb) f(aa)\n"
@@ -564,11 +572,13 @@ private:
 
     void fmt()
     {
-        const char filedata[] = "#define DBG(fmt...) printf(fmt);\n"
+        const char filedata[] = "#define DBG(fmt...) printf(fmt)\n"
                                 "DBG(\"[0x%lx-0x%lx)\", pstart, pend);";
 
         // Preprocess..
         std::string actual = Preprocessor::expandMacros(filedata);
+
+        ASSERT_EQUALS("\nprintf(\"[0x%lx-0x%lx)\", pstart, pend);", actual);
     }
 
 };