diff --git a/src/toGLSLInstruction.cpp b/src/toGLSLInstruction.cpp
index 1c1dee2..fe32c62 100644
--- a/src/toGLSLInstruction.cpp
+++ b/src/toGLSLInstruction.cpp
@@ -4315,7 +4315,7 @@ void ToGLSL::TranslateInstruction(Instruction* psInst, bool isEmbedded /* = fals
 		{
 			std::string vulkanSamplerName = GetVulkanDummySamplerName();
 
-			const RESOURCE_DIMENSION eResDim = psContext->psShader->aeResourceDims[psInst->asOperands[2].ui32RegisterNumber];
+			const RESOURCE_DIMENSION eResDim = psContext->psShader->aeResourceDims[psInst->asOperands[1].ui32RegisterNumber];
 			std::string smpType = GetSamplerType(psContext, eResDim, psInst->asOperands[2].ui32RegisterNumber);
 			std::ostringstream oss;
 			oss << smpType;
diff --git a/src/toGLSLOperand.cpp b/src/toGLSLOperand.cpp
index 4cb2f03..57a79a4 100644
--- a/src/toGLSLOperand.cpp
+++ b/src/toGLSLOperand.cpp
@@ -1164,7 +1164,7 @@ void ToGLSL::TranslateVariableNameWithMask(bstring glsl, const Operand* psOperan
                         if (((psVarType->Class == SVC_MATRIX_COLUMNS) || (psVarType->Class == SVC_MATRIX_ROWS)) && (psVarType->Elements > 1) && ((psContext->flags & HLSLCC_FLAG_TRANSLATE_MATRICES) == 0))
                         {
                             // Special handling for old matrix arrays
-                            bformata(glsl, "%%s / 4%s", squareBrackets[squareBracketType][0], fullIndexOss.str().c_str(), squareBrackets[squareBracketType][1]);
+                            bformata(glsl, "%s%s / 4%s", squareBrackets[squareBracketType][0], fullIndexOss.str().c_str(), squareBrackets[squareBracketType][1]);
                             bformata(glsl, "%s%s %% 4%s", squareBrackets[squareBracketType][0], fullIndexOss.str().c_str(), squareBrackets[squareBracketType][1]);
                         }
                         else // This path is atm the default