diff --git a/files/shaders/objects_fragment.glsl b/files/shaders/objects_fragment.glsl
index 31e929a90b..bc6d03639a 100644
--- a/files/shaders/objects_fragment.glsl
+++ b/files/shaders/objects_fragment.glsl
@@ -90,7 +90,7 @@ void main()
     vec3 cameraPos = (gl_ModelViewMatrixInverse * vec4(0,0,0,1)).xyz;
     vec3 objectPos = (gl_ModelViewMatrixInverse * vec4(passViewPos, 1)).xyz;
     vec3 eyeDir = normalize(cameraPos - objectPos);
-    vec2 offset = getParallaxOffset(eyeDir, tbnTranspose, normalTex.a, (passTangent.w > 0) ? -1.f : 1.f);
+    vec2 offset = getParallaxOffset(eyeDir, tbnTranspose, normalTex.a, (passTangent.w > 0.0) ? -1.f : 1.f);
     adjustedDiffuseUV += offset; // only offset diffuse for now, other textures are more likely to be using a completely different UV set
 
     // TODO: check not working as the same UV buffer is being bound to different targets
@@ -171,7 +171,7 @@ void main()
 
 #if @specularMap
     vec4 specTex = texture2D(specularMap, specularMapUV);
-    float shininess = specTex.a * 255;
+    float shininess = specTex.a * 255.0;
     vec3 matSpec = specTex.xyz;
 #else
     float shininess = gl_FrontMaterial.shininess;
diff --git a/files/shaders/terrain_fragment.glsl b/files/shaders/terrain_fragment.glsl
index b1917d33bb..5050616810 100644
--- a/files/shaders/terrain_fragment.glsl
+++ b/files/shaders/terrain_fragment.glsl
@@ -82,7 +82,7 @@ void main()
 #endif
 
 #if @specularMap
-    float shininess = 128; // TODO: make configurable
+    float shininess = 128.0; // TODO: make configurable
     vec3 matSpec = vec3(diffuseTex.a, diffuseTex.a, diffuseTex.a);
 #else
     float shininess = gl_FrontMaterial.shininess;