diff --git a/include/znc/Client.h b/include/znc/Client.h
index 855357e5..16998214 100644
--- a/include/znc/Client.h
+++ b/include/znc/Client.h
@@ -19,6 +19,7 @@
 
 #include <znc/zncconfig.h>
 #include <znc/Socket.h>
+#include <znc/Utils.h>
 #include <znc/main.h>
 #include <memory>
 
diff --git a/include/znc/Modules.h b/include/znc/Modules.h
index 933ad341..c0b54a6c 100644
--- a/include/znc/Modules.h
+++ b/include/znc/Modules.h
@@ -19,6 +19,7 @@
 
 #include <znc/zncconfig.h>
 #include <znc/WebModules.h>
+#include <znc/Utils.h>
 #include <znc/Threads.h>
 #include <znc/main.h>
 #include <functional>
diff --git a/include/znc/WebModules.h b/include/znc/WebModules.h
index e889f6b7..55c0a021 100644
--- a/include/znc/WebModules.h
+++ b/include/znc/WebModules.h
@@ -20,6 +20,7 @@
 #include <znc/zncconfig.h>
 #include <znc/Template.h>
 #include <znc/HTTPSock.h>
+#include <znc/Utils.h>
 
 class CAuthBase;
 class CUser;
diff --git a/modules/sample.cpp b/modules/sample.cpp
index aedc8b3f..4972f65b 100644
--- a/modules/sample.cpp
+++ b/modules/sample.cpp
@@ -20,6 +20,7 @@
 
 using std::vector;
 
+#ifdef HAVE_PTHREAD
 class CSampleJob : public CModuleJob {
 public:
 	CSampleJob(CModule *pModule) : CModuleJob(pModule, "sample", "Message the user after a delay") {}
@@ -49,6 +50,7 @@ public:
 		GetModule()->PutModule("Sample job done");
 	}
 };
+#endif
 
 class CSampleTimer : public CTimer {
 public:
@@ -72,7 +74,9 @@ public:
 		//AddTimer(new CSampleTimer(this, 300, 0, "Sample", "Sample timer for sample things."));
 		//AddTimer(new CSampleTimer(this, 5, 20, "Another", "Another sample timer."));
 		//AddTimer(new CSampleTimer(this, 25000, 5, "Third", "A third sample timer."));
+#ifdef HAVE_PTHREAD
 		AddJob(new CSampleJob(this));
+#endif
 		return true;
 	}