diff --git a/EmbeddedPkg/Library/CoherentDmaLib/CoherentDmaLib.c b/EmbeddedPkg/Library/CoherentDmaLib/CoherentDmaLib.c
index 564db83c90..8ca9e6aa5b 100644
--- a/EmbeddedPkg/Library/CoherentDmaLib/CoherentDmaLib.c
+++ b/EmbeddedPkg/Library/CoherentDmaLib/CoherentDmaLib.c
@@ -154,7 +154,7 @@ DmaAllocateAlignedBuffer (
   //
   if (MemoryType == EfiBootServicesData) {
     *HostAddress = AllocateAlignedPages (Pages, Alignment);
-  } else if (MemoryType != EfiRuntimeServicesData) {
+  } else if (MemoryType == EfiRuntimeServicesData) {
     *HostAddress = AllocateAlignedRuntimePages (Pages, Alignment);
   } else {
     return EFI_INVALID_PARAMETER;