diff --git a/Source/Core/Core/HW/DVD/DVDInterface.cpp b/Source/Core/Core/HW/DVD/DVDInterface.cpp
index 5e086f69c1..f1793626d3 100644
--- a/Source/Core/Core/HW/DVD/DVDInterface.cpp
+++ b/Source/Core/Core/HW/DVD/DVDInterface.cpp
@@ -1209,7 +1209,7 @@ void ExecuteCommand(ReplyType reply_type)
   default:
     ERROR_LOG_FMT(DVDINTERFACE, "Unknown command {:#010x} (Buffer {:#010x}, {:#x})", s_DICMDBUF[0],
                   s_DIMAR, s_DILENGTH);
-    PanicAlertFmtT("Unknown DVD command {:08x} - fatal error", s_DICMDBUF[0]);
+    PanicAlertFmtT("Unknown DVD command {0:08x} - fatal error", s_DICMDBUF[0]);
     SetDriveError(DriveError::InvalidCommand);
     interrupt_type = DIInterruptType::DEINT;
     break;
diff --git a/Source/Core/Core/HW/DVD/DVDThread.cpp b/Source/Core/Core/HW/DVD/DVDThread.cpp
index 815b9d8aa6..1cd143269b 100644
--- a/Source/Core/Core/HW/DVD/DVDThread.cpp
+++ b/Source/Core/Core/HW/DVD/DVDThread.cpp
@@ -344,7 +344,7 @@ static void FinishRead(u64 id, s64 cycles_late)
   DVDInterface::DIInterruptType interrupt;
   if (buffer.size() != request.length)
   {
-    PanicAlertFmtT("The disc could not be read (at {:#x} - {:#x}).", request.dvd_offset,
+    PanicAlertFmtT("The disc could not be read (at {0:#x} - {1:#x}).", request.dvd_offset,
                    request.dvd_offset + request.length);
 
     DVDInterface::SetDriveError(DVDInterface::DriveError::BlockOOB);
diff --git a/Source/Core/VideoCommon/CommandProcessor.cpp b/Source/Core/VideoCommon/CommandProcessor.cpp
index ea52be0ef2..4694860787 100644
--- a/Source/Core/VideoCommon/CommandProcessor.cpp
+++ b/Source/Core/VideoCommon/CommandProcessor.cpp
@@ -525,7 +525,7 @@ void SetCpClearRegister()
 void HandleUnknownOpcode(u8 cmd_byte, void* buffer, bool preprocess)
 {
   // TODO(Omega): Maybe dump FIFO to file on this error
-  PanicAlertFmtT("GFX FIFO: Unknown Opcode ({:#04x} @ {}, {}).\n"
+  PanicAlertFmtT("GFX FIFO: Unknown Opcode ({0:#04x} @ {1}, {2}).\n"
                  "This means one of the following:\n"
                  "* The emulated GPU got desynced, disabling dual core can help\n"
                  "* Command stream corrupted by some spurious memory bug\n"
diff --git a/Source/Core/VideoCommon/ImageWrite.cpp b/Source/Core/VideoCommon/ImageWrite.cpp
index 1085e7df24..aa3bdbe7e9 100644
--- a/Source/Core/VideoCommon/ImageWrite.cpp
+++ b/Source/Core/VideoCommon/ImageWrite.cpp
@@ -51,7 +51,7 @@ bool TextureToPng(const u8* data, int row_stride, const std::string& filename, i
   File::IOFile fp(filename, "wb");
   if (!fp.IsOpen())
   {
-    PanicAlertFmtT("Screenshot failed: Could not open file \"{}\" (error {})", filename, errno);
+    PanicAlertFmtT("Screenshot failed: Could not open file \"{0}\" (error {1})", filename, errno);
     goto finalise;
   }
 
diff --git a/Source/Core/VideoCommon/RenderBase.cpp b/Source/Core/VideoCommon/RenderBase.cpp
index 5de871f6dd..465bf25099 100644
--- a/Source/Core/VideoCommon/RenderBase.cpp
+++ b/Source/Core/VideoCommon/RenderBase.cpp
@@ -1666,7 +1666,7 @@ bool Renderer::StartFrameDumpToImage(const FrameDump::FrameData&)
     std::string filename = GetFrameDumpNextImageFileName();
     if (File::Exists(filename))
     {
-      if (!AskYesNoFmtT("Frame dump image(s) '{}' already exists. Overwrite?", filename))
+      if (!AskYesNoFmtT("Frame dump image(s) '{0}' already exists. Overwrite?", filename))
         return false;
     }
   }