diff --git a/Source/Core/Common/SDCardUtil.cpp b/Source/Core/Common/SDCardUtil.cpp
index 8a06a118d9..74ac71f08e 100644
--- a/Source/Core/Common/SDCardUtil.cpp
+++ b/Source/Core/Common/SDCardUtil.cpp
@@ -56,6 +56,8 @@
 #pragma warning(disable : 4310)
 #endif
 
+namespace Common
+{
 /* Believe me, you *don't* want to change these constants !! */
 #define BYTES_PER_SECTOR 512
 #define RESERVED_SECTORS 32
@@ -286,6 +288,7 @@ FailWrite:
     ERROR_LOG(COMMON, "unlink(%s) failed: %s", filename.c_str(), LastStrerrorString().c_str());
   return false;
 }
+}  // namespace Common
 
 #ifdef _MSC_VER
 #pragma warning(pop)
diff --git a/Source/Core/Common/SDCardUtil.h b/Source/Core/Common/SDCardUtil.h
index 64670aa9a9..d35e239df2 100644
--- a/Source/Core/Common/SDCardUtil.h
+++ b/Source/Core/Common/SDCardUtil.h
@@ -7,4 +7,7 @@
 #include <string>
 #include "Common/CommonTypes.h"
 
+namespace Common
+{
 bool SDCardCreate(u64 disk_size /*in MB*/, const std::string& filename);
+}  // namespace Common
diff --git a/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp b/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp
index 036457bacb..acf891deb9 100644
--- a/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp
+++ b/Source/Core/Core/IOS/SDIO/SDIOSlot0.cpp
@@ -67,7 +67,7 @@ void SDIOSlot0::OpenInternal()
   if (!m_card)
   {
     WARN_LOG(IOS_SD, "Failed to open SD Card image, trying to create a new 128MB image...");
-    if (SDCardCreate(128, filename))
+    if (Common::SDCardCreate(128, filename))
     {
       INFO_LOG(IOS_SD, "Successfully created %s", filename.c_str());
       m_card.Open(filename, "r+b");