diff --git a/libs/gui/BitTube.cpp b/libs/gui/BitTube.cpp
index 85a7de7..0282834 100644
--- a/libs/gui/BitTube.cpp
+++ b/libs/gui/BitTube.cpp
@@ -145,7 +145,7 @@
 
     // should never happen because of SOCK_SEQPACKET
     LOG_ALWAYS_FATAL_IF((size >= 0) && (size % objSize),
-            "BitTube::sendObjects(count=%d, size=%d), res=%d (partial events were sent!)",
+            "BitTube::sendObjects(count=%zu, size=%zu), res=%zd (partial events were sent!)",
             count, objSize, size);
 
     //ALOGE_IF(size<0, "error %d sending %d events", size, count);
@@ -160,7 +160,7 @@
 
     // should never happen because of SOCK_SEQPACKET
     LOG_ALWAYS_FATAL_IF((size >= 0) && (size % objSize),
-            "BitTube::recvObjects(count=%d, size=%d), res=%d (partial events were received!)",
+            "BitTube::recvObjects(count=%zu, size=%zu), res=%zd (partial events were received!)",
             count, objSize, size);
 
     //ALOGE_IF(size<0, "error %d receiving %d events", size, count);
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index c4ec857..674ee5a 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+#include <inttypes.h>
+
 #define LOG_TAG "ConsumerBase"
 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
 //#define LOG_NDEBUG 0
@@ -188,7 +190,7 @@
     mSlots[item->mBuf].mFrameNumber = item->mFrameNumber;
     mSlots[item->mBuf].mFence = item->mFence;
 
-    CB_LOGV("acquireBufferLocked: -> slot=%d/%llu",
+    CB_LOGV("acquireBufferLocked: -> slot=%d/%" PRIu64,
             item->mBuf, item->mFrameNumber);
 
     return OK;
@@ -239,7 +241,7 @@
         return OK;
     }
 
-    CB_LOGV("releaseBufferLocked: slot=%d/%llu",
+    CB_LOGV("releaseBufferLocked: slot=%d/%" PRIu64,
             slot, mSlots[slot].mFrameNumber);
     status_t err = mConsumer->releaseBuffer(slot, mSlots[slot].mFrameNumber,
             display, eglFence, mSlots[slot].mFence);