diff --git a/README.md b/README.md
index 8637e83..f6b2ade 100644
--- a/README.md
+++ b/README.md
@@ -390,7 +390,7 @@ var noRed = colour.SimulateProtanopia();
 
 ### Use ICC profiles for CMYK conversion
 Device-dependent colour prints of 4 (e.g. FOGRA39 CMYK) or more (e.g. FOGRA55 CMYKOGV) are supported through ICC profiles.
-If there is no ICC profile, or if the profile cannot be used, naive conversion for uncalibrated CMYK is used instead.
+If there is no ICC profile, or if the profile is incompatible, naive conversion for uncalibrated CMYK is used instead.
 ```c#
 using Wacton.Unicolour.Icc;
 
diff --git a/Unicolour.Readme/README.md b/Unicolour.Readme/README.md
index 53a3f78..ab97504 100644
--- a/Unicolour.Readme/README.md
+++ b/Unicolour.Readme/README.md
@@ -390,7 +390,7 @@ var noRed = colour.SimulateProtanopia();
 
 ### Use ICC profiles for CMYK conversion
 Device-dependent colour prints of 4 (e.g. FOGRA39 CMYK) or more (e.g. FOGRA55 CMYKOGV) are supported through ICC profiles.
-If there is no ICC profile, or if the profile cannot be used, naive conversion for uncalibrated CMYK is used instead.
+If there is no ICC profile, or if the profile is incompatible, naive conversion for uncalibrated CMYK is used instead.
 ```c#
 using Wacton.Unicolour.Icc;
 
diff --git a/docs/README.md b/docs/README.md
index c472eca..6f64d34 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -284,7 +284,7 @@ var noRed = colour.SimulateProtanopia();
 
 ### Use ICC profiles for CMYK conversion
 Device-dependent colour prints of 4 (e.g. FOGRA39 CMYK) or more (e.g. FOGRA55 CMYKOGV) are supported through ICC profiles.
-If there is no ICC profile, or if the profile cannot be used, naive conversion for uncalibrated CMYK is used instead.
+If there is no ICC profile, or if the profile is incompatible, naive conversion for uncalibrated CMYK is used instead.
 ```c#
 using Wacton.Unicolour.Icc;
 
diff --git a/docs/README_us.md b/docs/README_us.md
index 4e5ae28..2f97ed6 100644
--- a/docs/README_us.md
+++ b/docs/README_us.md
@@ -284,7 +284,7 @@ var noRed = color.SimulateProtanopia();
 
 ### Use ICC profiles for CMYK conversion
 Device-dependent color prints of 4 (e.g. FOGRA39 CMYK) or more (e.g. FOGRA55 CMYKOGV) are supported through ICC profiles.
-If there is no ICC profile, or if the profile cannot be used, naive conversion for uncalibrated CMYK is used instead.
+If there is no ICC profile, or if the profile is incompatible, naive conversion for uncalibrated CMYK is used instead.
 ```c#
 using Wacton.Unicolour.Icc;