diff --git a/Source/Core/Common/StringUtil.h b/Source/Core/Common/StringUtil.h
index 46ed382724..7846cbee3d 100644
--- a/Source/Core/Common/StringUtil.h
+++ b/Source/Core/Common/StringUtil.h
@@ -14,7 +14,14 @@
 
 #include "Common.h"
 
-std::string StringFromFormat(const char* format, ...);
+std::string StringFromFormat(const char* format, ...)
+#if !defined _WIN32
+// On compilers that support function attributes, this gives StringFromFormat
+// the same errors and warnings that printf would give.
+ __attribute__ ((__format__(printf, 1, 2)))
+#endif
+;
+
 // Cheap!
 bool CharArrayFromFormatV(char* out, int outsize, const char* format, va_list args);
 
diff --git a/Source/Core/Common/Timer.cpp b/Source/Core/Common/Timer.cpp
index b7ae848970..267755fb17 100644
--- a/Source/Core/Common/Timer.cpp
+++ b/Source/Core/Common/Timer.cpp
@@ -113,7 +113,7 @@ std::string Timer::GetTimeElapsedFormatted() const
 	// Hours
 	u32 Hours = Minutes / 60;
 
-	std::string TmpStr = StringFromFormat("%02i:%02i:%02i:%03i",
+	std::string TmpStr = StringFromFormat("%02i:%02i:%02i:%03lu",
 		Hours, Minutes % 60, Seconds % 60, Milliseconds % 1000);
 	return TmpStr;
 }
diff --git a/Source/Core/Core/CoreTiming.cpp b/Source/Core/Core/CoreTiming.cpp
index 5461692a22..ace2c9759c 100644
--- a/Source/Core/Core/CoreTiming.cpp
+++ b/Source/Core/Core/CoreTiming.cpp
@@ -469,7 +469,7 @@ std::string GetScheduledEventsSummary()
 		if (!name)
 			name = "[unknown]";
 
-		text += StringFromFormat("%s : %i %08x%08x\n", name, ptr->time, ptr->userdata >> 32, ptr->userdata);
+		text += StringFromFormat("%s : %li %08lx%08lx\n", name, ptr->time, ptr->userdata >> 32, ptr->userdata);
 		ptr = ptr->next;
 	}
 	return text;
diff --git a/Source/Core/Core/HLE/HLE_OS.cpp b/Source/Core/Core/HLE/HLE_OS.cpp
index ed80a68154..ed02672110 100644
--- a/Source/Core/Core/HLE/HLE_OS.cpp
+++ b/Source/Core/Core/HLE/HLE_OS.cpp
@@ -155,7 +155,7 @@ void GetStringVA(std::string& _rOutBuffer, u32 strReg)
 
 			case 'p':
 				// Override, so 64bit dolphin prints 32bit pointers, since the ppc is 32bit :)
-				_rOutBuffer += StringFromFormat("%x", Parameter);
+				_rOutBuffer += StringFromFormat("%x", (u32)Parameter);
 				break;
 
 			default:
diff --git a/Source/Core/Core/PowerPC/PPCTables.cpp b/Source/Core/Core/PowerPC/PPCTables.cpp
index 758fbae6c9..ce7d299f92 100644
--- a/Source/Core/Core/PowerPC/PPCTables.cpp
+++ b/Source/Core/Core/PowerPC/PPCTables.cpp
@@ -231,7 +231,7 @@ void LogCompiledInstructions()
 	}
 
 #ifdef OPLOG
-	f.Open(StringFromFormat("%s" OP_TO_LOG "_at.txt", File::GetUserPath(D_LOGS_IDX).c_str(), time), "w");
+	f.Open(StringFromFormat("%s" OP_TO_LOG "_at%i.txt", File::GetUserPath(D_LOGS_IDX).c_str(), time), "w");
 	for (auto& rsplocation : rsplocations)
 	{
 		fprintf(f.GetHandle(), OP_TO_LOG ": %08x\n", rsplocation);