diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index 0fdd496bb..c9d7b7a05 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -36,6 +36,15 @@ jobs:
       run: scripts/check_dilate.sh release data
     - name: Shellcheck
       run: find . -type f -name '*.sh' -print0 | xargs -0 shellcheck
+    - name: Check log error case
+      run: |
+        if grep -Eqr '(msg|Print).*\(.*"[Ee]rror:' src/;
+        then
+          echo "Expected log errors to be in this format 'ERROR: error message'"
+          echo "Found these non uppercased log errors:"
+          grep -Er '(msg|Print).*\(.*"[Ee]rror:' src/
+          exit 1
+        fi
     - name: Pylint
       run: |
         pylint --version
diff --git a/src/engine/client/backend/opengl/backend_opengl.cpp b/src/engine/client/backend/opengl/backend_opengl.cpp
index a3aa460d1..82d399a83 100644
--- a/src/engine/client/backend/opengl/backend_opengl.cpp
+++ b/src/engine/client/backend/opengl/backend_opengl.cpp
@@ -190,7 +190,7 @@ void CCommandProcessorFragment_OpenGL::SetState(const CCommandBuffer::SState &St
 			}
 			else
 			{
-				dbg_msg("opengl", "Error: this call should not happen.");
+				dbg_msg("opengl", "ERROR: this call should not happen.");
 			}
 		}
 	}
diff --git a/src/engine/client/client.cpp b/src/engine/client/client.cpp
index 6b183e1fc..65ff9ea08 100644
--- a/src/engine/client/client.cpp
+++ b/src/engine/client/client.cpp
@@ -3693,7 +3693,7 @@ void CClient::Con_SaveReplay(IConsole::IResult *pResult, void *pUserData)
 	{
 		int Length = pResult->GetInteger(0);
 		if(Length <= 0)
-			pSelf->m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "replay", "Error: length must be greater than 0 second.");
+			pSelf->m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "replay", "ERROR: length must be greater than 0 second.");
 		else
 			pSelf->SaveReplay(Length);
 	}
@@ -3711,9 +3711,9 @@ void CClient::SaveReplay(const int Length)
 	}
 
 	if(!DemoRecorder(RECORDER_REPLAYS)->IsRecording())
-		m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "replay", "Error: demorecorder isn't recording. Try to rejoin to fix that.");
+		m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "replay", "ERROR: demorecorder isn't recording. Try to rejoin to fix that.");
 	else if(DemoRecorder(RECORDER_REPLAYS)->Length() < 1)
-		m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "replay", "Error: demorecorder isn't recording for at least 1 second.");
+		m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "replay", "ERROR: demorecorder isn't recording for at least 1 second.");
 	else
 	{
 		// First we stop the recorder to slice correctly the demo after