diff --git a/glslang/MachineIndependent/Initialize.cpp b/glslang/MachineIndependent/Initialize.cpp
index 22e87823..64d80e9b 100644
--- a/glslang/MachineIndependent/Initialize.cpp
+++ b/glslang/MachineIndependent/Initialize.cpp
@@ -2207,7 +2207,7 @@ void TBuiltIns::addSamplingFunctions(TSampler sampler, TString& typeName, int /*
 //
 // Add all the texture gather functions for the given type.
 //
-void TBuiltIns::addGatherFunctions(TSampler sampler, TString& typeName, int version, EProfile profile)
+void TBuiltIns::addGatherFunctions(TSampler sampler, TString& typeName, int version, EProfile /* profile */)
 {
     switch (sampler.dim) {
     case Esd2D:
diff --git a/glslang/MachineIndependent/Scan.h b/glslang/MachineIndependent/Scan.h
index 9c496216..999666ca 100644
--- a/glslang/MachineIndependent/Scan.h
+++ b/glslang/MachineIndependent/Scan.h
@@ -88,7 +88,7 @@ public:
         // Make sure we do not read off the end of a string.
         // N.B. Sources can have a length of 0.
         int sourceToRead = currentSource;
-        int charToRead = currentChar;
+        size_t charToRead = currentChar;
         while(charToRead >= lengths[sourceToRead]) {
             charToRead = 0;
             sourceToRead += 1;