diff --git a/Compiler/BackEnd/BackendDAEOptimize.mo b/Compiler/BackEnd/BackendDAEOptimize.mo
index 53b274f1884..0848bd2c619 100644
--- a/Compiler/BackEnd/BackendDAEOptimize.mo
+++ b/Compiler/BackEnd/BackendDAEOptimize.mo
@@ -7791,7 +7791,7 @@ algorithm
       false = List.isEmpty(varlst);
 
       str = Util.if_(linear, "linear", "nonlinear");
-      Error.addCompilerNotification("Iteration variables of torn " +& str +& "equation system:\n" +& warnAboutVars(varlst));
+      Error.addCompilerNotification("Iteration variables of torn " +& str +& " equation system:\n" +& warnAboutVars(varlst));
       listAllIterationVariables2(rest, inVars);
     then ();
 
diff --git a/Compiler/BackEnd/Initialization.mo b/Compiler/BackEnd/Initialization.mo
index 36c2fb66d78..deaa7ba959c 100644
--- a/Compiler/BackEnd/Initialization.mo
+++ b/Compiler/BackEnd/Initialization.mo
@@ -751,7 +751,7 @@ algorithm
       false = List.isEmpty(varlst);
 
       str = Util.if_(linear, "linear", "nonlinear");
-      Debug.fcall(Flags.INITIALIZATION, Error.addCompilerWarning, "Iteration variables with default zero start attribute in torn " +& str +& "equation system:\n" +& warnAboutVars2(varlst));
+      Debug.fcall(Flags.INITIALIZATION, Error.addCompilerWarning, "Iteration variables with default zero start attribute in torn " +& str +& " equation system:\n" +& warnAboutVars2(varlst));
       _ = warnAboutIterationVariablesWithDefaultZeroStartAttribute2(rest, inVars);
     then true;