diff --git a/Exec/science/subch_planar/Problem_Derive.cpp b/Exec/science/subch_planar/Problem_Derive.cpp
index 3275166238..9cb25c92e7 100644
--- a/Exec/science/subch_planar/Problem_Derive.cpp
+++ b/Exec/science/subch_planar/Problem_Derive.cpp
@@ -23,9 +23,8 @@ void ca_dergradpoverp(const Box& bx, FArrayBox& derfab, int /*dcomp*/, int /*nco
 
 #if AMREX_SPACEDIM == 3
     amrex::Error("3D not supported");
-#endif
-#if AMREX_SPACEDIM == 1
-    amrex::Error("1D not supported");
+#elif AMREX_SPACEDIM == 1
+    return; // Skip for 1D
 #endif
 
     Real dxinv = 1.0_rt / dx[0];
@@ -226,9 +225,8 @@ void ca_dergradpoverp1(const Box& bx, FArrayBox& derfab, int /*dcomp*/, int /*nc
 
 #if AMREX_SPACEDIM == 3
     amrex::Error("3D not supported");
-#endif
-#if AMREX_SPACEDIM == 1
-    amrex::Error("1D not supported");
+#elif AMREX_SPACEDIM == 1
+    return; // Skip for 1D
 #endif
 
     Real dxinv = 1.0_rt / dx[0];
@@ -434,9 +432,8 @@ void ca_dergradpx(const Box& bx, FArrayBox& derfab, int /*dcomp*/, int /*ncomp*/
 
 #if AMREX_SPACEDIM == 3
     amrex::Error("3D not supported");
-#endif
-#if AMREX_SPACEDIM == 1
-    amrex::Error("1D not supported");
+#elif AMREX_SPACEDIM == 1
+    return; // Skip for 1D
 #endif
 
     Real dxinv = 1.0_rt / dx[0];
@@ -545,9 +542,8 @@ void ca_dergradpy(const Box& bx, FArrayBox& derfab, int /*dcomp*/, int /*ncomp*/
 
 #if AMREX_SPACEDIM == 3
     amrex::Error("3D not supported");
-#endif
-#if AMREX_SPACEDIM == 1
-    amrex::Error("1D not supported");
+#elif AMREX_SPACEDIM == 1
+    return; // Skip for 1D
 #endif
 
     Real dxinv = 1.0_rt / dx[0];
@@ -658,9 +654,8 @@ void ca_dergradrhooverrho(const Box& bx, FArrayBox& derfab, int /*dcomp*/, int /
 
 #if AMREX_SPACEDIM == 3
     amrex::Error("3D not supported");
-#endif
-#if AMREX_SPACEDIM == 1
-    amrex::Error("1D not supported");
+#elif AMREX_SPACEDIM == 1
+    return; // Skip for 1D
 #endif
 
     Real dxinv = 1.0_rt / dx[0];
@@ -719,4 +714,4 @@ void ca_dergradrhooverrho(const Box& bx, FArrayBox& derfab, int /*dcomp*/, int /
 
     });
 
-}
+}
\ No newline at end of file
diff --git a/Exec/science/subch_planar/problem_initialize_state_data.H b/Exec/science/subch_planar/problem_initialize_state_data.H
index f002f1339c..48f0aceac3 100644
--- a/Exec/science/subch_planar/problem_initialize_state_data.H
+++ b/Exec/science/subch_planar/problem_initialize_state_data.H
@@ -25,7 +25,9 @@ void problem_initialize_state_data (int i, int j, int k,
     Real z = problo[2] + dx[2] * (static_cast<Real>(k) + 0.5_rt);
 #endif
 
-#if AMREX_SPACEDIM == 2
+#if AMREX_SPACEDIM == 1
+    Real height = x;
+#elif AMREX_SPACEDIM == 2
     Real height = y;
 #else
     Real height = z;