diff --git a/core/Makefile b/core/Makefile
index 5b4e3447..a49dc222 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -23,7 +23,7 @@ OBJECTS = AdminCache.cpp CDataPack.cpp ConCmdManager.cpp ConVarManager.cpp CoreC
 	sm_autonatives.cpp sm_memtable.cpp sm_srvcmds.cpp sm_stringutil.cpp sm_trie.cpp \
 	sourcemm_api.cpp sourcemod.cpp MenuStyle_Base.cpp MenuStyle_Valve.cpp MenuManager.cpp \
 	MenuStyle_Radio.cpp ChatTriggers.cpp ADTFactory.cpp MenuVoting.cpp sm_crc32.cpp \
-	frame_hooks.cpp concmd_cleaner.cpp
+	frame_hooks.cpp concmd_cleaner.cpp Profiler.cpp
 OBJECTS += smn_admin.cpp smn_bitbuffer.cpp smn_console.cpp smn_core.cpp \
 	smn_datapacks.cpp smn_entities.cpp smn_events.cpp smn_fakenatives.cpp \
 	smn_filesystem.cpp smn_float.cpp smn_functions.cpp smn_gameconfigs.cpp smn_halflife.cpp \
diff --git a/core/Profiler.cpp b/core/Profiler.cpp
index 7f119144..b69341da 100644
--- a/core/Profiler.cpp
+++ b/core/Profiler.cpp
@@ -33,6 +33,10 @@
 #include "PluginSys.h"
 #include "sm_stringutil.h"
 #include "Logger.h"
+#if defined PLATFORM_POSIX
+#include <sys/time.h>
+#include <time.h>
+#endif
 
 ProfileEngine g_Profiler;
 IProfiler *sm_profiler = &g_Profiler;
@@ -123,14 +127,14 @@ inline double DiffProfPoints(const prof_point_t &start, const prof_point_t &end)
 #elif defined PLATFORM_POSIX
 	seconds = (double)(end.value.tv_sec - start.value.tv_sec);
 
-	if (start.value.tv_usec > after.value.tv_usec)
+	if (start.value.tv_usec > end.value.tv_usec)
 	{
-		seconds - 1.0;
-		seconds += (double)(1000000 - (before.value.tv_usec - after.tv_usec)) / 1000000.0;
+		seconds -= 1.0;
+		seconds += (double)(1000000 - (start.value.tv_usec - end.value.tv_usec)) / 1000000.0;
 	}
 	else
 	{
-		seconds += (double)(after.value.tv_usec - before.value.tv_usec) / 1000000.0;
+		seconds += (double)(end.value.tv_usec - start.value.tv_usec) / 1000000.0;
 	}
 #endif