diff --git a/plugins/GSdx/GS.h b/plugins/GSdx/GS.h
index 239b8f769c..c201a6393c 100644
--- a/plugins/GSdx/GS.h
+++ b/plugins/GSdx/GS.h
@@ -1282,7 +1282,7 @@ struct GSPrivRegSet
 			if(i == 0 && !PMODE.EN1) continue;
 			if(i == 1 && !PMODE.EN2) continue;
 
-			fprintf(fp, "DISPFB[%d] BP=%05x BW=%d PSM=%d DBX=%d DBY=%d\n",
+			fprintf(fp, "DISPFB[%d] BP=%05x BW=%u PSM=%u DBX=%u DBY=%u\n",
 					i,
 					DISP[i].DISPFB.Block(),
 					DISP[i].DISPFB.FBW,
@@ -1291,7 +1291,7 @@ struct GSPrivRegSet
 					DISP[i].DISPFB.DBY
 				   );
 
-			fprintf(fp, "DISPLAY[%d] DX=%d DY=%d DW=%d DH=%d MAGH=%d MAGV=%d\n",
+			fprintf(fp, "DISPLAY[%d] DX=%u DY=%u DW=%u DH=%u MAGH=%u MAGV=%u\n",
 					i,
 					DISP[i].DISPLAY.DX,
 					DISP[i].DISPLAY.DY,
diff --git a/plugins/GSdx/GSRendererDX.cpp b/plugins/GSdx/GSRendererDX.cpp
index 236e540ebc..76ed169c69 100644
--- a/plugins/GSdx/GSRendererDX.cpp
+++ b/plugins/GSdx/GSRendererDX.cpp
@@ -356,7 +356,7 @@ void GSRendererDX::DrawPrims(GSTexture* rt, GSTexture* ds, GSTextureCache::Sourc
 		}
 		else if ((fbmask & 0xFF) != 0xFF) {
 #ifdef _DEBUG
-			fprintf(stderr, "Please fix me! wb %d wr %d\n", om_bsel.wb, om_bsel.wr);
+			fprintf(stderr, "Please fix me! wb %u wr %u\n", om_bsel.wb, om_bsel.wr);
 #endif
 			//ASSERT(0);
 		}
@@ -370,7 +370,7 @@ void GSRendererDX::DrawPrims(GSTexture* rt, GSTexture* ds, GSTextureCache::Sourc
 		}
 		else if ((fbmask & 0xFF) != 0xFF) {
 #ifdef _DEBUG
-			fprintf(stderr, "Please fix me! wa %d wg %d\n", om_bsel.wa, om_bsel.wg);
+			fprintf(stderr, "Please fix me! wa %u wg %u\n", om_bsel.wa, om_bsel.wg);
 #endif
 			//ASSERT(0);
 		}
diff --git a/plugins/spu2-x/src/Wavedump_wav.cpp b/plugins/spu2-x/src/Wavedump_wav.cpp
index 94aed6cc5f..1d3bcd7a2a 100644
--- a/plugins/spu2-x/src/Wavedump_wav.cpp
+++ b/plugins/spu2-x/src/Wavedump_wav.cpp
@@ -53,10 +53,10 @@ void Open()
         for (int srcidx = 0; srcidx < CoreSrc_Count; srcidx++) {
             safe_delete(m_CoreWav[cidx][srcidx]);
 #ifdef __POSIX__
-            sprintf(wavfilename, "logs/spu2x-Core%d-%s.wav",
+            sprintf(wavfilename, "logs/spu2x-Core%ud-%s.wav",
                     cidx, m_tbl_CoreOutputTypeNames[srcidx]);
 #else
-            sprintf(wavfilename, "logs\\spu2x-Core%d-%s.wav",
+            sprintf(wavfilename, "logs\\spu2x-Core%ud-%s.wav",
                     cidx, m_tbl_CoreOutputTypeNames[srcidx]);
 #endif