diff --git a/test/teststl.cpp b/test/teststl.cpp
index 985ffe984..6607b4176 100644
--- a/test/teststl.cpp
+++ b/test/teststl.cpp
@@ -1434,7 +1434,7 @@ private:
     }
 
     template<size_t n, typename T>
-    size_t getArraylength(const T(&)[n]) {
+    static size_t getArraylength(const T(&)[n]) {
         return n;
     }
 
diff --git a/test/testsymboldatabase.cpp b/test/testsymboldatabase.cpp
index 5751dedb4..2d2d32e9e 100644
--- a/test/testsymboldatabase.cpp
+++ b/test/testsymboldatabase.cpp
@@ -58,7 +58,7 @@ private:
         found = false;
     }
 
-    const SymbolDatabase* getSymbolDB_inner(Tokenizer& tokenizer, const char* code, const char* filename) {
+    const static SymbolDatabase* getSymbolDB_inner(Tokenizer& tokenizer, const char* code, const char* filename) {
         errout.str("");
         std::istringstream istr(code);
         tokenizer.tokenize(istr, filename);
diff --git a/test/testtype.cpp b/test/testtype.cpp
index 3788e0df4..22684983a 100644
--- a/test/testtype.cpp
+++ b/test/testtype.cpp
@@ -220,7 +220,7 @@ private:
 
     // This function ensure that test works with different compilers. Floats can
     // be stringified differently.
-    std::string removeFloat(const std::string& msg) {
+    static std::string removeFloat(const std::string& msg) {
         std::string::size_type pos1 = msg.find("float (");
         std::string::size_type pos2 = msg.find(") conversion");
         if (pos1 == std::string::npos || pos2 == std::string::npos || pos1 > pos2)