diff --git a/src/add-ons/kernel/file_systems/userlandfs/server/beos/beos_kernel_emu.cpp b/src/add-ons/kernel/file_systems/userlandfs/server/beos/beos_kernel_emu.cpp
index 52cf42da49..8fc8bef1a3 100644
--- a/src/add-ons/kernel/file_systems/userlandfs/server/beos/beos_kernel_emu.cpp
+++ b/src/add-ons/kernel/file_systems/userlandfs/server/beos/beos_kernel_emu.cpp
@@ -338,11 +338,11 @@ panic(const char *format, ...)
 	char buffer[1024];
 	strcpy(buffer, "PANIC: ");
 	int32 prefixLen = strlen(buffer);
-	int bufferSize = sizeof(buffer) - prefixLen;
 	va_list args;
 	va_start(args, format);
 	// no vsnprintf() on PPC
 	#if defined(__INTEL__)
+		int bufferSize = sizeof(buffer) - prefixLen;
 		vsnprintf(buffer + prefixLen, bufferSize - 1, format, args);
 	#else
 		vsprintf(buffer + prefixLen, format, args);
diff --git a/src/add-ons/kernel/file_systems/userlandfs/server/kernel_emu.cpp b/src/add-ons/kernel/file_systems/userlandfs/server/kernel_emu.cpp
index dcc9fa18a1..8167991f53 100644
--- a/src/add-ons/kernel/file_systems/userlandfs/server/kernel_emu.cpp
+++ b/src/add-ons/kernel/file_systems/userlandfs/server/kernel_emu.cpp
@@ -907,10 +907,10 @@ UserlandFS::KernelEmu::vpanic(const char *format, va_list args)
 	char buffer[1024];
 	strcpy(buffer, "PANIC: ");
 	int32 prefixLen = strlen(buffer);
-	int bufferSize = sizeof(buffer) - prefixLen;
 
 	// no vsnprintf() on PPC
 	#if defined(__INTEL__)
+		int bufferSize = sizeof(buffer) - prefixLen;
 		vsnprintf(buffer + prefixLen, bufferSize - 1, format, args);
 	#else
 		vsprintf(buffer + prefixLen, format, args);