diff --git a/reactos/dll/win32/kernel32/misc/actctx.c b/reactos/dll/win32/kernel32/misc/actctx.c
index d70fa3172d5..13c04e977f4 100644
--- a/reactos/dll/win32/kernel32/misc/actctx.c
+++ b/reactos/dll/win32/kernel32/misc/actctx.c
@@ -30,7 +30,7 @@ FindActCtxSectionStringA(
     )
 {
     BOOL bRetVal;
-    LPWSTR lpStringToFindW;
+    LPWSTR lpStringToFindW = NULL;
 
     /* Convert lpStringToFind */
     if (lpStringToFind)
@@ -47,7 +47,8 @@ FindActCtxSectionStringA(
                                         ReturnedData);
 
     /* Clean up */
-    RtlFreeHeap(GetProcessHeap(), 0, (LPWSTR*) lpStringToFindW);
+    if (lpStringToFindW)
+        RtlFreeHeap(GetProcessHeap(), 0, (LPWSTR*) lpStringToFindW);
 
     return bRetVal;
 }